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

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

Direct Known Subclasses:

CollectionValuedFieldResolver, SingleValuedObjectFieldResolver, StateFieldResolver

abstract class AbstractPathResolver

extends Resolver

This Resolver is responsible to resolve a single path of a path expression (state field path expression, singled valued object field, or a collection-valued path expression).

Since:

2.3

Version:

2.3

Author:

Pascal Filion

See Also:

CollectionValuedFieldResolver, SingleValuedObjectFieldResolver, StateFieldResolver

Field Summary

private IMapping	mapping The mapping of the last path of the path expression or null if it could not be found.
private boolean	mappingResolved This flag is used to prevent resolving the IMapping more than once and no mapping could be found the first time.
(package private) java.lang.String	path The name of the path for which its type will be retrieved.

Constructor Summary

AbstractPathResolver(Resolver parent, java.lang.String path)
Creates a new AbstractPathResolver.

Method Summary

(package private) ITypeDeclaration	buildTypeDeclaration() Resolves the ITypeDeclaration of the property handled by this Resolver.
IMapping	getMapping() Returns the IMapping for the wrapped field.
java.lang.String	getPath() Returns the single path represented by this Resolver.
private IMapping	resolveMapping() Retrieves the IMapping for the given property name.

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

accept, addChild, buildType, checkParent, getChild, getManagedType, 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, toString, wait, wait, wait

Field Detail

mapping

private IMapping mapping

The mapping of the last path of the path expression or null if it could not be found.

mappingResolved

private boolean mappingResolved

This flag is used to prevent resolving the IMapping more than once and no mapping could be found the first time.

path

final java.lang.String path

The name of the path for which its type will be retrieved.

Constructor Detail

AbstractPathResolver

AbstractPathResolver(Resolver parent,
                     java.lang.String path)

Creates a new AbstractPathResolver.

Parameters:

parent - The parent Resolver, which is never null

path - The name of the path

Method Detail

buildTypeDeclaration

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

getMapping

public final IMapping getMapping()

Returns the IMapping for the wrapped field.

Overrides:

getMapping in class Resolver

Returns:

Either the IMapping or null if none exists

getPath

public final java.lang.String getPath()

Returns the single path represented by this Resolver.

Returns:

The single path represented by this Resolver

resolveMapping

private IMapping resolveMapping()

Retrieves the IMapping for the given property name.

Parameters:

propertyName - The name of the IMapping to retrieve

Returns:

Either the IMapping or null if none exists

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