EclipseLink JPA 4.0.2 · org.eclipse.persistence.internal.jpa.querydef.ParameterExpressionImpl

Modifier and Type	Field and Description
protected String	internalName
protected String	name
protected Integer	position

Access	Constructor and Description
public	ParameterExpressionImpl(Metamodel metamodel, Class<T> javaType, String name)
public	ParameterExpressionImpl(Metamodel metamodel, Class<T> javaType)
public	ParameterExpressionImpl(Metamodel metamodel, Class<T> javaType, Integer position)

Method Summary

Modifier and Type	Method and Description
public boolean	equals(Object the reference object with which to compare. obj) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public void	findRootAndParameters(CommonAbstractCriteriaImpl<T> query) Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.findRootAndParameters. Implements org.eclipse.persistence.internal.jpa.querydef.InternalSelection.findRootAndParameters.
public String	getInternalName() Returns the name used by EclipseLink when a name has not been assigned by the user.
public String	Returns: parameter name getName() Implements jakarta.persistence.Parameter.getName. Return the parameter name, or null if the parameter is not a named parameter.
public Class<T>	Returns: the Java type of the parameter getParameterType() Implements jakarta.persistence.Parameter.getParameterType. Return the Java type of the parameter.
public Integer	Returns: position of parameter getPosition() Implements jakarta.persistence.Parameter.getPosition. Return the parameter position, or null if the parameter is not a positional parameter.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for the object.
public boolean	isParameter() Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.isParameter. Implements org.eclipse.persistence.internal.jpa.querydef.InternalExpression.isParameter.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl:: as buildExpressionForAs in in in in isCompoundExpression isExpression isJunction isLiteral isNotNull isNull isPredicate isSubquery

internalName	back to summary
protected String internalName

name	back to summary
protected String name

position	back to summary
protected Integer position

ParameterExpressionImpl	back to summary
public ParameterExpressionImpl(Metamodel metamodel, Class<T> javaType, String name)

ParameterExpressionImpl	back to summary
public ParameterExpressionImpl(Metamodel metamodel, Class<T> javaType)

ParameterExpressionImpl	back to summary
public ParameterExpressionImpl(Metamodel metamodel, Class<T> javaType, Integer position)

Method Detail

equals back to summary

equals	back to summary
public boolean equals(Object obj) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters obj:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object obj)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

obj:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

findRootAndParameters	back to summary
public void findRootAndParameters(CommonAbstractCriteriaImpl<T> query) Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.findRootAndParameters. Implements org.eclipse.persistence.internal.jpa.querydef.InternalSelection.findRootAndParameters. Annotations @Override

findRootAndParameters

back to summary

public void findRootAndParameters(CommonAbstractCriteriaImpl<T> query)

Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.findRootAndParameters.

Implements org.eclipse.persistence.internal.jpa.querydef.InternalSelection.findRootAndParameters.

Annotations

@Override

getInternalName	back to summary
public String getInternalName() Returns the name used by EclipseLink when a name has not been assigned by the user.

getName	back to summary
public String getName() Implements jakarta.persistence.Parameter.getName. Return the parameter name, or null if the parameter is not a named parameter. Returns:String parameter name Annotations @Override

getName

back to summary

public String getName()

Implements jakarta.persistence.Parameter.getName.

Return the parameter name, or null if the parameter is not a named parameter.

Returns:String

parameter name

Annotations

@Override

getParameterType	back to summary
public Class<T> getParameterType() Implements jakarta.persistence.Parameter.getParameterType. Return the Java type of the parameter. Values bound to the parameter must be assignable to this type. This method is required to be supported for criteria queries only. Applications that use this method for Java Persistence query language queries and native queries will not be portable. Returns:Class<T> the Java type of the parameter Annotations @Override Exceptions IllegalStateException: if invoked on a parameter obtained from a Java persistence query language query or native query when the implementation does not support this use.

getParameterType

back to summary

public Class<T> getParameterType()

Implements jakarta.persistence.Parameter.getParameterType.

Return the Java type of the parameter. Values bound to the parameter must be assignable to this type. This method is required to be supported for criteria queries only. Applications that use this method for Java Persistence query language queries and native queries will not be portable.

Returns:Class<T>

the Java type of the parameter

Annotations

@Override

Exceptions

IllegalStateException:: if invoked on a parameter obtained from a Java persistence query language query or native query when the implementation does not support this use.

getPosition	back to summary
public Integer getPosition() Implements jakarta.persistence.Parameter.getPosition. Return the parameter position, or null if the parameter is not a positional parameter. Returns:Integer position of parameter Annotations @Override

getPosition

back to summary

public Integer getPosition()

Implements jakarta.persistence.Parameter.getPosition.

Return the parameter position, or null if the parameter is not a positional parameter.

Returns:Integer

position of parameter

Annotations

@Override

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object. Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object.

Annotations

@Override

isParameter	back to summary
public boolean isParameter() Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.isParameter. Implements org.eclipse.persistence.internal.jpa.querydef.InternalExpression.isParameter. Annotations @Override

isParameter

back to summary

public boolean isParameter()

Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.isParameter.

Implements org.eclipse.persistence.internal.jpa.querydef.InternalExpression.isParameter.

Annotations

@Override

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Doc from java.lang.Object.toString. Returns a string representation of the object. Returns:String a string representation of the object. Annotations @Override

toString

back to summary

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object.

Annotations

@Override

public Class ParameterExpressionImpl<T>

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Field Detail

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