Spring Context 6.1.4 · org.springframework.context.expression.EnvironmentAccessor

Access	Constructor and Description
public	EnvironmentAccessor()

Method Summary

Modifier and Type	Method and Description
public boolean	Returns: true canRead(EvaluationContext the evaluation context in which the access is being attempted context, Object the target object upon which the property is being accessed target, String the name of the property being accessed name) Implements org.springframework.expression.PropertyAccessor.canRead. Can read any `Environment`, thus always returns true.
public boolean	canWrite(EvaluationContext the evaluation context in which the access is being attempted context, Object the target object upon which the property is being accessed target, String the name of the property being accessed name) Implements org.springframework.expression.PropertyAccessor.canWrite. Read-only: returns `false`.
public Class<?>[]	getSpecificTargetClasses() Implements org.springframework.expression.PropertyAccessor.getSpecificTargetClasses. Return an array of classes for which this resolver should be called.
public TypedValue	read(EvaluationContext the evaluation context in which the access is being attempted context, Object the target object upon which the property is being accessed target, String the name of the property being accessed name) Implements org.springframework.expression.PropertyAccessor.read. Access the given target object by resolving the given property name against the given target environment.
public void	write(EvaluationContext the evaluation context in which the access is being attempted context, Object the target object upon which the property is being accessed target, String the name of the property being accessed name, Object the new value for the property newValue) Implements org.springframework.expression.PropertyAccessor.write. Read-only: no-op.

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

EnvironmentAccessor	back to summary
public EnvironmentAccessor()

Method Detail

canRead back to summary

canRead	back to summary
public boolean canRead(EvaluationContext context, Object target, String name) throws AccessException Implements org.springframework.expression.PropertyAccessor.canRead. Can read any `Environment`, thus always returns true. Parameters context:EvaluationContext Doc from org.springframework.expression.PropertyAccessor.canRead. the evaluation context in which the access is being attempted target:Object Doc from org.springframework.expression.PropertyAccessor.canRead. the target object upon which the property is being accessed name:String Doc from org.springframework.expression.PropertyAccessor.canRead. the name of the property being accessed Returns:boolean true Annotations @Override Exceptions AccessException: Doc from org.springframework.expression.PropertyAccessor.canRead. if there is any problem determining whether the property can be read

public boolean canRead(EvaluationContext context, Object target, String name) throws AccessException

Implements org.springframework.expression.PropertyAccessor.canRead.

Can read any Environment, thus always returns true.

Parameters

context:EvaluationContext

Doc from org.springframework.expression.PropertyAccessor.canRead.

the evaluation context in which the access is being attempted

target:Object

Doc from org.springframework.expression.PropertyAccessor.canRead.

the target object upon which the property is being accessed

name:String

Doc from org.springframework.expression.PropertyAccessor.canRead.

the name of the property being accessed

Returns:boolean

true

Annotations

@Override

Exceptions

AccessException:

Doc from org.springframework.expression.PropertyAccessor.canRead.

if there is any problem determining whether the property can be read

canWrite back to summary

canWrite	back to summary
public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException Implements org.springframework.expression.PropertyAccessor.canWrite. Read-only: returns `false`. Parameters context:EvaluationContext Doc from org.springframework.expression.PropertyAccessor.canWrite. the evaluation context in which the access is being attempted target:Object Doc from org.springframework.expression.PropertyAccessor.canWrite. the target object upon which the property is being accessed name:String Doc from org.springframework.expression.PropertyAccessor.canWrite. the name of the property being accessed Returns:boolean Doc from org.springframework.expression.PropertyAccessor.canWrite. true if this resolver is able to write to the property Annotations @Override Exceptions AccessException: Doc from org.springframework.expression.PropertyAccessor.canWrite. if there is any problem determining whether the property can be written to

public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException

Implements org.springframework.expression.PropertyAccessor.canWrite.

Read-only: returns false.

Parameters

context:EvaluationContext

Doc from org.springframework.expression.PropertyAccessor.canWrite.

the evaluation context in which the access is being attempted

target:Object

Doc from org.springframework.expression.PropertyAccessor.canWrite.

the target object upon which the property is being accessed

name:String

Doc from org.springframework.expression.PropertyAccessor.canWrite.

the name of the property being accessed

Returns:boolean

Doc from org.springframework.expression.PropertyAccessor.canWrite.

true if this resolver is able to write to the property

Annotations

@Override

Exceptions

AccessException:

Doc from org.springframework.expression.PropertyAccessor.canWrite.

if there is any problem determining whether the property can be written to

getSpecificTargetClasses back to summary

getSpecificTargetClasses	back to summary
public Class<?>[] getSpecificTargetClasses() Implements org.springframework.expression.PropertyAccessor.getSpecificTargetClasses. Doc from org.springframework.expression.PropertyAccessor.getSpecificTargetClasses. Return an array of classes for which this resolver should be called. Returning `null` indicates this is a general resolver that can be called in an attempt to resolve a property on any type. Returns:Class<?>[] an array of classes that this resolver is suitable for (or `null` if a general resolver) Annotations @Override

public Class<?>[] getSpecificTargetClasses()

Implements org.springframework.expression.PropertyAccessor.getSpecificTargetClasses.

Doc from org.springframework.expression.PropertyAccessor.getSpecificTargetClasses.

Return an array of classes for which this resolver should be called.

Returning null indicates this is a general resolver that can be called in an attempt to resolve a property on any type.

Returns:Class<?>[]

an array of classes that this resolver is suitable for (or null if a general resolver)

Annotations

@Override

read	back to summary
public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException Implements org.springframework.expression.PropertyAccessor.read. Access the given target object by resolving the given property name against the given target environment. Parameters context:EvaluationContext Doc from org.springframework.expression.PropertyAccessor.read. the evaluation context in which the access is being attempted target:Object Doc from org.springframework.expression.PropertyAccessor.read. the target object upon which the property is being accessed name:String Doc from org.springframework.expression.PropertyAccessor.read. the name of the property being accessed Returns:TypedValue Doc from org.springframework.expression.PropertyAccessor.read. a TypedValue object wrapping the property value read and a type descriptor for it Annotations @Override Exceptions AccessException: Doc from org.springframework.expression.PropertyAccessor.read. if there is any problem accessing the property value

read

back to summary

public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException

Implements org.springframework.expression.PropertyAccessor.read.

Access the given target object by resolving the given property name against the given target environment.

Parameters

context:EvaluationContext

Doc from org.springframework.expression.PropertyAccessor.read.

the evaluation context in which the access is being attempted

target:Object

Doc from org.springframework.expression.PropertyAccessor.read.

the target object upon which the property is being accessed

name:String

Doc from org.springframework.expression.PropertyAccessor.read.

the name of the property being accessed

Returns:TypedValue

Doc from org.springframework.expression.PropertyAccessor.read.

a TypedValue object wrapping the property value read and a type descriptor for it

Annotations

@Override

Exceptions

AccessException:

Doc from org.springframework.expression.PropertyAccessor.read.

if there is any problem accessing the property value

write	back to summary
public void write(EvaluationContext context, Object target, String name, Object newValue) throws AccessException Implements org.springframework.expression.PropertyAccessor.write. Read-only: no-op. Parameters context:EvaluationContext Doc from org.springframework.expression.PropertyAccessor.write. the evaluation context in which the access is being attempted target:Object Doc from org.springframework.expression.PropertyAccessor.write. the target object upon which the property is being accessed name:String Doc from org.springframework.expression.PropertyAccessor.write. the name of the property being accessed newValue:Object Doc from org.springframework.expression.PropertyAccessor.write. the new value for the property Annotations @Override Exceptions AccessException: Doc from org.springframework.expression.PropertyAccessor.write. if there is any problem writing to the property value

write

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