org.eclipse.persistence.internal.jpa.querydef

Class ParameterExpressionImpl<T>

java.lang.Object

org.eclipse.persistence.internal.jpa.querydef.SelectionImpl<X>

org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl<T>

org.eclipse.persistence.internal.jpa.querydef.ParameterExpressionImpl<T>

All Implemented Interfaces:

java.io.Serializable, javax.persistence.criteria.Expression<T>, javax.persistence.criteria.ParameterExpression<T>, javax.persistence.criteria.Selection<T>, javax.persistence.Parameter<T>, javax.persistence.TupleElement<T>, InternalExpression, InternalSelection

public class ParameterExpressionImpl<T>
extends ExpressionImpl<T>
implements javax.persistence.criteria.ParameterExpression<T>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ParameterExpressionImpl(javax.persistence.metamodel.Metamodel metamodel, java.lang.Class<T> javaType)
ParameterExpressionImpl(javax.persistence.metamodel.Metamodel metamodel, java.lang.Class<T> javaType, java.lang.Integer position)
ParameterExpressionImpl(javax.persistence.metamodel.Metamodel metamodel, java.lang.Class<T> javaType, java.lang.String name)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
void	findRootAndParameters(AbstractQueryImpl query)
java.lang.String	getName() Return the parameter name, or null if the parameter is not a named parameter.
java.lang.Class<T>	getParameterType() Return the Java type of the parameter.
java.lang.Integer	getPosition() Return the parameter position, or null if the parameter is not a positional parameter.
int	hashCode()
boolean	isParameter()

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl

as, in, in, in, in, isCompoundExpression, isExpression, isLiteral, isNotNull, isNull, isPredicate, isSubquery

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.SelectionImpl

alias, getAlias, getCompoundSelectionItems, getCurrentNode, getJavaType, isCompoundSelection, isConstructor, isFrom, isRoot

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.persistence.criteria.Expression

as, in, in, in, in, isNotNull, isNull

Methods inherited from interface javax.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Constructor Detail

ParameterExpressionImpl

public ParameterExpressionImpl(javax.persistence.metamodel.Metamodel metamodel,
                               java.lang.Class<T> javaType,
                               java.lang.String name)

ParameterExpressionImpl

public ParameterExpressionImpl(javax.persistence.metamodel.Metamodel metamodel,
                               java.lang.Class<T> javaType)

ParameterExpressionImpl

public ParameterExpressionImpl(javax.persistence.metamodel.Metamodel metamodel,
                               java.lang.Class<T> javaType,
                               java.lang.Integer position)

Method Detail

findRootAndParameters

public void findRootAndParameters(AbstractQueryImpl query)

Specified by:

findRootAndParameters in interface InternalSelection

Overrides:

findRootAndParameters in class ExpressionImpl<T>

getName

public java.lang.String getName()

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

Specified by:

getName in interface javax.persistence.Parameter<T>

Returns:

parameter name

getPosition

public java.lang.Integer getPosition()

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

Specified by:

getPosition in interface javax.persistence.Parameter<T>

Returns:

position of parameter

getParameterType

public java.lang.Class<T> 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.

Specified by:

getParameterType in interface javax.persistence.Parameter<T>

Returns:

the Java type of the parameter

Throws:

java.lang.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.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

isParameter

public boolean isParameter()

Specified by:

isParameter in interface InternalExpression

Overrides:

isParameter in class ExpressionImpl<T>

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object