Spring Framework 6.1.4 · org.springframework.expression.spel.standard.SpelExpression

Modifier and Type	Field and Description
private final SpelNodeImpl	ast
private volatile CompiledExpression	compiledAst
private final SpelParserConfiguration	configuration
private EvaluationContext	evaluationContext
private final String	expression
private static final int	FAILED_ATTEMPTS_THRESHOLD
private final AtomicInteger	failedAttempts
private static final int	INTERPRETED_COUNT_THRESHOLD
private final AtomicInteger	interpretedCount

Access	Constructor and Description
public	SpelExpression(String expression, SpelNodeImpl ast, SpelParserConfiguration configuration) Construct an expression, only used by the parser.

Method Summary

Modifier and Type	Method and Description
private void	checkCompile(ExpressionState the expression state used to determine compilation mode expressionState) Compile the expression if it has been evaluated more than the threshold number of times to trigger compilation.
public boolean	Returns: whether this expression has been successfully compiled compileExpression() Perform expression compilation.
public SpelNode	getAST() Return the Abstract Syntax Tree for the expression.
public EvaluationContext	Returns: the default evaluation context getEvaluationContext() Return the default evaluation context that will be used if none is supplied on an evaluation call.
public String	getExpressionString() Implements org.springframework.expression.Expression.getExpressionString. Return the original string used to create this expression (unmodified).
public Object	getValue() Implements org.springframework.expression.Expression.getValue. Evaluate this expression in the default standard context.
public <T> T	getValue(Class<T> the type the caller would like the result to be expectedResultType) Implements org.springframework.expression.Expression.getValue. Evaluate this expression in the default context.
public Object	getValue(Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.getValue. Evaluate this expression against the specified root object.
public <T> T	getValue(Object the root object against which to evaluate the expression rootObject, Class<T> the type the caller would like the result to be expectedResultType) Implements org.springframework.expression.Expression.getValue. Evaluate this expression in the default context against the specified root object.
public Object	getValue(EvaluationContext the context in which to evaluate the expression context) Implements org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context and return the result of evaluation.
public <T> T	getValue(EvaluationContext the context in which to evaluate the expression context, Class<T> the type the caller would like the result to be expectedResultType) Implements org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context which can resolve references to properties, methods, types, etc. The type of the evaluation result is expected to be of a particular type, and an exception will be thrown if it is not and cannot be converted to that type.
public Object	getValue(EvaluationContext the context in which to evaluate the expression context, Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context and return the result of evaluation, but use the supplied root context as an override for any default root object specified in the context.
public <T> T	getValue(EvaluationContext the context in which to evaluate the expression context, Object the root object against which to evaluate the expression rootObject, Class<T> the type the caller would like the result to be expectedResultType) Implements org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context which can resolve references to properties, methods, types, etc. The type of the evaluation result is expected to be of a particular type, and an exception will be thrown if it is not and cannot be converted to that type.j The supplied root object overrides any specified in the supplied context.
public Class<?>	getValueType() Implements org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(EvaluationContext, Object)` method using the default context.
public Class<?>	getValueType(Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(Object, Object)` method using the default context.
public Class<?>	getValueType(EvaluationContext the context in which to evaluate the expression context) Implements org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(EvaluationContext, Object)` method for the given context.
public Class<?>	getValueType(EvaluationContext the context in which to evaluate the expression context, Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(EvaluationContext, Object, Object)` method for the given context.
public TypeDescriptor	getValueTypeDescriptor() Implements org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to one of the `setValue(...)` methods using the default context.
public TypeDescriptor	getValueTypeDescriptor(Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to the `setValue(Object, Object)` method using the default context.
public TypeDescriptor	getValueTypeDescriptor(EvaluationContext the context in which to evaluate the expression context) Implements org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to the `setValue(EvaluationContext, Object)` method for the given context.
public TypeDescriptor	getValueTypeDescriptor(EvaluationContext the context in which to evaluate the expression context, Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to the `setValue(EvaluationContext, Object, Object)` method for the given context.
public boolean	isWritable(Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.isWritable. Determine if this expression can be written to, i.e. setValue() can be called.
public boolean	isWritable(EvaluationContext the context in which the expression should be checked context) Implements org.springframework.expression.Expression.isWritable. Determine if this expression can be written to, i.e. setValue() can be called.
public boolean	isWritable(EvaluationContext the context in which the expression should be checked context, Object the root object against which to evaluate the expression rootObject) Implements org.springframework.expression.Expression.isWritable. Determine if this expression can be written to, i.e. setValue() can be called.
public void	revertToInterpreted() Cause an expression to revert to being interpreted if it has been using a compiled form.
public void	setEvaluationContext(EvaluationContext the evaluation context to use evaluationContext) Set the evaluation context that will be used if none is specified on an evaluation call.
public void	setValue(Object the root object against which to evaluate the expression rootObject, Object the new value value) Implements org.springframework.expression.Expression.setValue. Set this expression in the provided context to the value provided.
public void	setValue(EvaluationContext the context in which to set the value of the expression context, Object the new value value) Implements org.springframework.expression.Expression.setValue. Set this expression in the provided context to the value provided.
public void	setValue(EvaluationContext the context in which to set the value of the expression context, Object the root object against which to evaluate the expression rootObject, Object the new value value) Implements org.springframework.expression.Expression.setValue. Set this expression in the provided context to the value provided.
public String	Returns: the string representation of the AST toStringAST() Produce a string representation of the Abstract Syntax Tree for the expression.
private TypedValue	toTypedValue(Object object)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

ast	back to summary
private final SpelNodeImpl ast

compiledAst	back to summary
private volatile CompiledExpression compiledAst Annotations @Nullable

configuration	back to summary
private final SpelParserConfiguration configuration

evaluationContext	back to summary
private EvaluationContext evaluationContext Annotations @Nullable

expression	back to summary
private final String expression

FAILED_ATTEMPTS_THRESHOLD	back to summary
private static final int FAILED_ATTEMPTS_THRESHOLD

failedAttempts	back to summary
private final AtomicInteger failedAttempts

INTERPRETED_COUNT_THRESHOLD	back to summary
private static final int INTERPRETED_COUNT_THRESHOLD

interpretedCount	back to summary
private final AtomicInteger interpretedCount

SpelExpression	back to summary
public SpelExpression(String expression, SpelNodeImpl ast, SpelParserConfiguration configuration) Construct an expression, only used by the parser.

Method Detail

checkCompile	back to summary
private void checkCompile(ExpressionState expressionState) Compile the expression if it has been evaluated more than the threshold number of times to trigger compilation. Parameters expressionState:ExpressionState the expression state used to determine compilation mode

checkCompile

back to summary

private void checkCompile(ExpressionState expressionState)

Compile the expression if it has been evaluated more than the threshold number of times to trigger compilation.

Parameters

expressionState:ExpressionState: the expression state used to determine compilation mode

compileExpression	back to summary
public boolean compileExpression() Perform expression compilation. This will only succeed once exit descriptors for all nodes have been determined. If the compilation fails and has failed more than 100 times the expression is no longer considered suitable for compilation. Returns:boolean whether this expression has been successfully compiled

compileExpression

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public boolean compileExpression()

Perform expression compilation. This will only succeed once exit descriptors for all nodes have been determined. If the compilation fails and has failed more than 100 times the expression is no longer considered suitable for compilation.

Returns:boolean: whether this expression has been successfully compiled

getAST	back to summary
public SpelNode getAST() Return the Abstract Syntax Tree for the expression.

getEvaluationContext	back to summary
public EvaluationContext getEvaluationContext() Return the default evaluation context that will be used if none is supplied on an evaluation call. Returns:EvaluationContext the default evaluation context

getEvaluationContext

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public EvaluationContext getEvaluationContext()

Return the default evaluation context that will be used if none is supplied on an evaluation call.

Returns:EvaluationContext: the default evaluation context

getExpressionString	back to summary
public String getExpressionString() Implements org.springframework.expression.Expression.getExpressionString. Doc from org.springframework.expression.Expression.getExpressionString. Return the original string used to create this expression (unmodified). Returns:String the original expression string Annotations @Override

getExpressionString

back to summary

public String getExpressionString()

Implements org.springframework.expression.Expression.getExpressionString.

Doc from org.springframework.expression.Expression.getExpressionString.

Return the original string used to create this expression (unmodified).

Returns:String

the original expression string

Annotations

@Override

getValue	back to summary
public Object getValue() throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression in the default standard context. Returns:Object the evaluation result Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public Object getValue() throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

Evaluate this expression in the default standard context.

Returns:Object

the evaluation result

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValue	back to summary
public <T> T getValue(Class<T> expectedResultType) throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression in the default context. If the result of the evaluation does not match (and cannot be converted to) the expected result type then an exception will be thrown. Parameters expectedResultType:Class<T> the type the caller would like the result to be Returns:T the evaluation result Annotations @SuppressWarnings:unchecked @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public <T> T getValue(Class<T> expectedResultType) throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

Evaluate this expression in the default context. If the result of the evaluation does not match (and cannot be converted to) the expected result type then an exception will be thrown.

Parameters

expectedResultType:Class<T>: the type the caller would like the result to be

Returns:T

the evaluation result

Annotations

@SuppressWarnings:unchecked
@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValue	back to summary
public Object getValue(Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression against the specified root object. Parameters rootObject:Object the root object against which to evaluate the expression Returns:Object the evaluation result Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public Object getValue(Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

Evaluate this expression against the specified root object.

Parameters

rootObject:Object: the root object against which to evaluate the expression

Returns:Object

the evaluation result

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValue	back to summary
public <T> T getValue(Object rootObject, Class<T> expectedResultType) throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression in the default context against the specified root object. If the result of the evaluation does not match (and cannot be converted to) the expected result type then an exception will be thrown. Parameters rootObject:Object the root object against which to evaluate the expression expectedResultType:Class<T> the type the caller would like the result to be Returns:T the evaluation result Annotations @SuppressWarnings:unchecked @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public <T> T getValue(Object rootObject, Class<T> expectedResultType) throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

Evaluate this expression in the default context against the specified root object. If the result of the evaluation does not match (and cannot be converted to) the expected result type then an exception will be thrown.

Parameters

rootObject:Object: the root object against which to evaluate the expression
expectedResultType:Class<T>: the type the caller would like the result to be

Returns:T

the evaluation result

Annotations

@SuppressWarnings:unchecked
@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValue	back to summary
public Object getValue(EvaluationContext context) throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context and return the result of evaluation. Parameters context:EvaluationContext the context in which to evaluate the expression Returns:Object the evaluation result Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public Object getValue(EvaluationContext context) throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

Evaluate this expression in the provided context and return the result of evaluation.

Parameters

context:EvaluationContext: the context in which to evaluate the expression

Returns:Object

the evaluation result

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValue	back to summary
public <T> T getValue(EvaluationContext context, Class<T> expectedResultType) throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context which can resolve references to properties, methods, types, etc. The type of the evaluation result is expected to be of a particular type, and an exception will be thrown if it is not and cannot be converted to that type. Parameters context:EvaluationContext the context in which to evaluate the expression expectedResultType:Class<T> the type the caller would like the result to be Returns:T the evaluation result Annotations @SuppressWarnings:unchecked @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public <T> T getValue(EvaluationContext context, Class<T> expectedResultType) throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

Evaluate this expression in the provided context which can resolve references to properties, methods, types, etc. The type of the evaluation result is expected to be of a particular type, and an exception will be thrown if it is not and cannot be converted to that type.

Parameters

context:EvaluationContext: the context in which to evaluate the expression
expectedResultType:Class<T>: the type the caller would like the result to be

Returns:T

the evaluation result

Annotations

@SuppressWarnings:unchecked
@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValue	back to summary
public Object getValue(EvaluationContext context, Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context and return the result of evaluation, but use the supplied root context as an override for any default root object specified in the context. Parameters context:EvaluationContext the context in which to evaluate the expression rootObject:Object the root object against which to evaluate the expression Returns:Object the evaluation result Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public Object getValue(EvaluationContext context, Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

Evaluate this expression in the provided context and return the result of evaluation, but use the supplied root context as an override for any default root object specified in the context.

Parameters

context:EvaluationContext: the context in which to evaluate the expression
rootObject:Object: the root object against which to evaluate the expression

Returns:Object

the evaluation result

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValue	back to summary
public <T> T getValue(EvaluationContext context, Object rootObject, Class<T> expectedResultType) throws EvaluationException Implements org.springframework.expression.Expression.getValue. Doc from org.springframework.expression.Expression.getValue. Evaluate this expression in the provided context which can resolve references to properties, methods, types, etc. The type of the evaluation result is expected to be of a particular type, and an exception will be thrown if it is not and cannot be converted to that type.j The supplied root object overrides any specified in the supplied context. Parameters context:EvaluationContext the context in which to evaluate the expression rootObject:Object the root object against which to evaluate the expression expectedResultType:Class<T> the type the caller would like the result to be Returns:T the evaluation result Annotations @SuppressWarnings:unchecked @Override @Nullable Exceptions EvaluationException: if there is a problem during evaluation

getValue

back to summary

public <T> T getValue(EvaluationContext context, Object rootObject, Class<T> expectedResultType) throws EvaluationException

Implements org.springframework.expression.Expression.getValue.

Doc from org.springframework.expression.Expression.getValue.

The supplied root object overrides any specified in the supplied context.

Parameters

context:EvaluationContext: the context in which to evaluate the expression
rootObject:Object: the root object against which to evaluate the expression
expectedResultType:Class<T>: the type the caller would like the result to be

Returns:T

the evaluation result

Annotations

@SuppressWarnings:unchecked
@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem during evaluation

getValueType back to summary

getValueType	back to summary
public Class<?> getValueType() throws EvaluationException Implements org.springframework.expression.Expression.getValueType. Doc from org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(EvaluationContext, Object)` method using the default context. Returns:Class<?> the most general type of value that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public Class<?> getValueType() throws EvaluationException

Implements org.springframework.expression.Expression.getValueType.

Doc from org.springframework.expression.Expression.getValueType.

Return the most general type that can be passed to the setValue(EvaluationContext, Object) method using the default context.

Returns:Class<?>

the most general type of value that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

getValueType back to summary

getValueType	back to summary
public Class<?> getValueType(Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.getValueType. Doc from org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(Object, Object)` method using the default context. Parameters rootObject:Object the root object against which to evaluate the expression Returns:Class<?> the most general type of value that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public Class<?> getValueType(Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.getValueType.

Doc from org.springframework.expression.Expression.getValueType.

Return the most general type that can be passed to the setValue(Object, Object) method using the default context.

Parameters

rootObject:Object: the root object against which to evaluate the expression

Returns:Class<?>

the most general type of value that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

getValueType back to summary

getValueType	back to summary
public Class<?> getValueType(EvaluationContext context) throws EvaluationException Implements org.springframework.expression.Expression.getValueType. Doc from org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(EvaluationContext, Object)` method for the given context. Parameters context:EvaluationContext the context in which to evaluate the expression Returns:Class<?> the most general type of value that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public Class<?> getValueType(EvaluationContext context) throws EvaluationException

Implements org.springframework.expression.Expression.getValueType.

Doc from org.springframework.expression.Expression.getValueType.

Return the most general type that can be passed to the setValue(EvaluationContext, Object) method for the given context.

Parameters

context:EvaluationContext: the context in which to evaluate the expression

Returns:Class<?>

the most general type of value that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

getValueType back to summary

getValueType	back to summary
public Class<?> getValueType(EvaluationContext context, Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.getValueType. Doc from org.springframework.expression.Expression.getValueType. Return the most general type that can be passed to the `setValue(EvaluationContext, Object, Object)` method for the given context. The supplied root object overrides any specified in the supplied context. Parameters context:EvaluationContext the context in which to evaluate the expression rootObject:Object the root object against which to evaluate the expression Returns:Class<?> the most general type of value that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public Class<?> getValueType(EvaluationContext context, Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.getValueType.

Doc from org.springframework.expression.Expression.getValueType.

Return the most general type that can be passed to the setValue(EvaluationContext, Object, Object) method for the given context.

The supplied root object overrides any specified in the supplied context.

Parameters

context:EvaluationContext: the context in which to evaluate the expression
rootObject:Object: the root object against which to evaluate the expression

Returns:Class<?>

the most general type of value that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

getValueTypeDescriptor back to summary

getValueTypeDescriptor	back to summary
public TypeDescriptor getValueTypeDescriptor() throws EvaluationException Implements org.springframework.expression.Expression.getValueTypeDescriptor. Doc from org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to one of the `setValue(...)` methods using the default context. Returns:TypeDescriptor a type descriptor for values that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public TypeDescriptor getValueTypeDescriptor() throws EvaluationException

Implements org.springframework.expression.Expression.getValueTypeDescriptor.

Doc from org.springframework.expression.Expression.getValueTypeDescriptor.

Return a descriptor for the most general type that can be passed to one of the setValue(...) methods using the default context.

Returns:TypeDescriptor

a type descriptor for values that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

getValueTypeDescriptor back to summary

getValueTypeDescriptor	back to summary
public TypeDescriptor getValueTypeDescriptor(Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.getValueTypeDescriptor. Doc from org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to the `setValue(Object, Object)` method using the default context. Parameters rootObject:Object the root object against which to evaluate the expression Returns:TypeDescriptor a type descriptor for values that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public TypeDescriptor getValueTypeDescriptor(Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.getValueTypeDescriptor.

Doc from org.springframework.expression.Expression.getValueTypeDescriptor.

Return a descriptor for the most general type that can be passed to the setValue(Object, Object) method using the default context.

Parameters

rootObject:Object: the root object against which to evaluate the expression

Returns:TypeDescriptor

a type descriptor for values that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

getValueTypeDescriptor back to summary

getValueTypeDescriptor	back to summary
public TypeDescriptor getValueTypeDescriptor(EvaluationContext context) throws EvaluationException Implements org.springframework.expression.Expression.getValueTypeDescriptor. Doc from org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to the `setValue(EvaluationContext, Object)` method for the given context. Parameters context:EvaluationContext the context in which to evaluate the expression Returns:TypeDescriptor a type descriptor for values that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public TypeDescriptor getValueTypeDescriptor(EvaluationContext context) throws EvaluationException

Implements org.springframework.expression.Expression.getValueTypeDescriptor.

Doc from org.springframework.expression.Expression.getValueTypeDescriptor.

Return a descriptor for the most general type that can be passed to the setValue(EvaluationContext, Object) method for the given context.

Parameters

context:EvaluationContext: the context in which to evaluate the expression

Returns:TypeDescriptor

a type descriptor for values that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

getValueTypeDescriptor back to summary

getValueTypeDescriptor	back to summary
public TypeDescriptor getValueTypeDescriptor(EvaluationContext context, Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.getValueTypeDescriptor. Doc from org.springframework.expression.Expression.getValueTypeDescriptor. Return a descriptor for the most general type that can be passed to the `setValue(EvaluationContext, Object, Object)` method for the given context. The supplied root object overrides any specified in the supplied context. Parameters context:EvaluationContext the context in which to evaluate the expression rootObject:Object the root object against which to evaluate the expression Returns:TypeDescriptor a type descriptor for values that can be set in this context Annotations @Override @Nullable Exceptions EvaluationException: if there is a problem determining the type

public TypeDescriptor getValueTypeDescriptor(EvaluationContext context, Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.getValueTypeDescriptor.

Doc from org.springframework.expression.Expression.getValueTypeDescriptor.

Return a descriptor for the most general type that can be passed to the setValue(EvaluationContext, Object, Object) method for the given context.

The supplied root object overrides any specified in the supplied context.

Parameters

context:EvaluationContext: the context in which to evaluate the expression
rootObject:Object: the root object against which to evaluate the expression

Returns:TypeDescriptor

a type descriptor for values that can be set in this context

Annotations

@Override
@Nullable

Exceptions

EvaluationException:: if there is a problem determining the type

isWritable back to summary

isWritable	back to summary
public boolean isWritable(Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.isWritable. Doc from org.springframework.expression.Expression.isWritable. Determine if this expression can be written to, i.e. setValue() can be called. Parameters rootObject:Object the root object against which to evaluate the expression Returns:boolean `true` if the expression is writable; `false` otherwise Annotations @Override Exceptions EvaluationException: if there is a problem determining if it is writable

public boolean isWritable(Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.isWritable.

Doc from org.springframework.expression.Expression.isWritable.

Determine if this expression can be written to, i.e. setValue() can be called.

Parameters

rootObject:Object: the root object against which to evaluate the expression

Returns:boolean

true if the expression is writable; false otherwise

Annotations

@Override

Exceptions

EvaluationException:: if there is a problem determining if it is writable

isWritable back to summary

isWritable	back to summary
public boolean isWritable(EvaluationContext context) throws EvaluationException Implements org.springframework.expression.Expression.isWritable. Doc from org.springframework.expression.Expression.isWritable. Determine if this expression can be written to, i.e. setValue() can be called. Parameters context:EvaluationContext the context in which the expression should be checked Returns:boolean `true` if the expression is writable; `false` otherwise Annotations @Override Exceptions EvaluationException: if there is a problem determining if it is writable

public boolean isWritable(EvaluationContext context) throws EvaluationException

Implements org.springframework.expression.Expression.isWritable.

Doc from org.springframework.expression.Expression.isWritable.

Determine if this expression can be written to, i.e. setValue() can be called.

Parameters

context:EvaluationContext: the context in which the expression should be checked

Returns:boolean

true if the expression is writable; false otherwise

Annotations

@Override

Exceptions

EvaluationException:: if there is a problem determining if it is writable

isWritable back to summary

isWritable	back to summary
public boolean isWritable(EvaluationContext context, Object rootObject) throws EvaluationException Implements org.springframework.expression.Expression.isWritable. Doc from org.springframework.expression.Expression.isWritable. Determine if this expression can be written to, i.e. setValue() can be called. The supplied root object overrides any specified in the supplied context. Parameters context:EvaluationContext the context in which the expression should be checked rootObject:Object the root object against which to evaluate the expression Returns:boolean `true` if the expression is writable; `false` otherwise Annotations @Override Exceptions EvaluationException: if there is a problem determining if it is writable

public boolean isWritable(EvaluationContext context, Object rootObject) throws EvaluationException

Implements org.springframework.expression.Expression.isWritable.

Doc from org.springframework.expression.Expression.isWritable.

Determine if this expression can be written to, i.e. setValue() can be called.

The supplied root object overrides any specified in the supplied context.

Parameters

context:EvaluationContext: the context in which the expression should be checked
rootObject:Object: the root object against which to evaluate the expression

Returns:boolean

true if the expression is writable; false otherwise

Annotations

@Override

Exceptions

EvaluationException:: if there is a problem determining if it is writable

revertToInterpreted	back to summary
public void revertToInterpreted() Cause an expression to revert to being interpreted if it has been using a compiled form. It also resets the compilation attempt failure count (an expression is normally no longer considered compilable if it cannot be compiled after 100 attempts).

setEvaluationContext	back to summary
public void setEvaluationContext(EvaluationContext evaluationContext) Set the evaluation context that will be used if none is specified on an evaluation call. Parameters evaluationContext:EvaluationContext the evaluation context to use

setEvaluationContext

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public void setEvaluationContext(EvaluationContext evaluationContext)

Set the evaluation context that will be used if none is specified on an evaluation call.

Parameters

evaluationContext:EvaluationContext: the evaluation context to use

setValue	back to summary
public void setValue(Object rootObject, Object value) throws EvaluationException Implements org.springframework.expression.Expression.setValue. Doc from org.springframework.expression.Expression.setValue. Set this expression in the provided context to the value provided. Parameters rootObject:Object the root object against which to evaluate the expression value:Object the new value Annotations @Override Exceptions EvaluationException: if there is a problem during evaluation

setValue

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public void setValue(Object rootObject, Object value) throws EvaluationException

Implements org.springframework.expression.Expression.setValue.

Doc from org.springframework.expression.Expression.setValue.

Set this expression in the provided context to the value provided.

Parameters

rootObject:Object: the root object against which to evaluate the expression
value:Object: the new value

Annotations

@Override

Exceptions

EvaluationException:: if there is a problem during evaluation

setValue	back to summary
public void setValue(EvaluationContext context, Object value) throws EvaluationException Implements org.springframework.expression.Expression.setValue. Doc from org.springframework.expression.Expression.setValue. Set this expression in the provided context to the value provided. Parameters context:EvaluationContext the context in which to set the value of the expression value:Object the new value Annotations @Override Exceptions EvaluationException: if there is a problem during evaluation

setValue

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public void setValue(EvaluationContext context, Object value) throws EvaluationException

Implements org.springframework.expression.Expression.setValue.

Doc from org.springframework.expression.Expression.setValue.

Set this expression in the provided context to the value provided.

Parameters

context:EvaluationContext: the context in which to set the value of the expression
value:Object: the new value

Annotations

@Override

Exceptions

EvaluationException:: if there is a problem during evaluation

setValue	back to summary
public void setValue(EvaluationContext context, Object rootObject, Object value) throws EvaluationException Implements org.springframework.expression.Expression.setValue. Doc from org.springframework.expression.Expression.setValue. Set this expression in the provided context to the value provided. The supplied root object overrides any specified in the supplied context. Parameters context:EvaluationContext the context in which to set the value of the expression rootObject:Object the root object against which to evaluate the expression value:Object the new value Annotations @Override Exceptions EvaluationException: if there is a problem during evaluation

setValue

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public void setValue(EvaluationContext context, Object rootObject, Object value) throws EvaluationException

Implements org.springframework.expression.Expression.setValue.

Doc from org.springframework.expression.Expression.setValue.

Set this expression in the provided context to the value provided.

The supplied root object overrides any specified in the supplied context.

Parameters

context:EvaluationContext: the context in which to set the value of the expression
rootObject:Object: the root object against which to evaluate the expression
value:Object: the new value

Annotations

@Override

Exceptions

EvaluationException:: if there is a problem during evaluation

toStringAST	back to summary
public String toStringAST() Produce a string representation of the Abstract Syntax Tree for the expression. This should ideally look like the input expression, but properly formatted since any unnecessary whitespace will have been discarded during the parse of the expression. Returns:String the string representation of the AST

toStringAST

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public String toStringAST()

Produce a string representation of the Abstract Syntax Tree for the expression. This should ideally look like the input expression, but properly formatted since any unnecessary whitespace will have been discarded during the parse of the expression.

Returns:String: the string representation of the AST

toTypedValue	back to summary
private TypedValue toTypedValue(Object object)

public Class SpelExpression

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