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org.eclipse.persistence.jpa.internal.jpql
Class IdentificationVariableResolver

java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.Resolver
org.eclipse.persistence.jpa.internal.jpql.IdentificationVariableResolver

public final class IdentificationVariableResolver

extends Resolver

This Resolver is responsible to resolve the type of an identification variable.

Since:

2.3

Version:

2.3

Author:

Pascal Filion

Field Summary

private java.lang.String

variableName The name of the identification variable, which is never null nor an empty string.

Constructor Summary

IdentificationVariableResolver(Resolver parent, java.lang.String variableName)
Creates a new IdentificationVariableResolver.

Method Summary

void	accept(ResolverVisitor visitor) Visits this Resolver by the given visitor.
IType	buildType() Resolves the IType of the property handled by this Resolver.
ITypeDeclaration	buildTypeDeclaration() Resolves the ITypeDeclaration of the property handled by this Resolver.
IManagedType	getManagedType() Returns the IManagedType associated with the field handled by this Resolver.
IMapping	getMapping() Returns the IMapping for the wrapped field.
java.lang.String	getVariableName() Returns the identification variable handled by this Resolver.
java.lang.String	toString()

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.Resolver

addChild, checkParent, getChild, getParent, getParentManagedType, getParentMapping, getParentType, getParentTypeDeclaration, getProvider, getQuery, getType, getType, getType, getTypeDeclaration, getTypeHelper, getTypeRepository, isNullAllowed, setNullAllowed

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

variableName

private final java.lang.String variableName

The name of the identification variable, which is never null nor an empty string.

Constructor Detail

IdentificationVariableResolver

IdentificationVariableResolver(Resolver parent,
                               java.lang.String variableName)

Creates a new IdentificationVariableResolver.

Parameters:

parent - The parent Resolver, which is never null

variableName - The name of the identification variable, which should never be null and it should not be an empty string

Method Detail

accept

public void accept(ResolverVisitor visitor)

Visits this Resolver by the given visitor.

Specified by:

accept in class Resolver

Parameters:

visitor - The visitor to visit this object

buildType

public IType buildType()

Resolves the IType of the property handled by this Resolver.

Overrides:

buildType in class Resolver

Returns:

Either the IType that was resolved by this Resolver or the IType for IType.UNRESOLVABLE_TYPE if it could not be resolved

buildTypeDeclaration

public ITypeDeclaration buildTypeDeclaration()

Resolves the ITypeDeclaration of the property handled by this Resolver.

Specified by:

buildTypeDeclaration in class Resolver

Returns:

Either the ITypeDeclaration that was resolved by this Resolver or the ITypeDeclaration for IType.UNRESOLVABLE_TYPE if it could not be resolved

getManagedType

public IManagedType getManagedType()

Returns the IManagedType associated with the field handled by this Resolver. If this Resolver does not handle a field that has a IManagedType, then null should be returned.

For example: "SELECT e FROM Employee e", the Resolver for e would be returning the IManagedType for Employee.

Overrides:

getManagedType in class Resolver

Returns:

Either the IManagedType, if it could be resolved; null otherwise

getMapping

public IMapping getMapping()

Returns the IMapping for the wrapped field.

Overrides:

getMapping in class Resolver

Returns:

Either the IMapping or null if none exists

getVariableName

public java.lang.String getVariableName()

Returns the identification variable handled by this Resolver.

Returns:

The identification variable handled by this Resolver

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

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