org.hibernate.loader.criteria

Class CriteriaJoinWalker

java.lang.Object

org.hibernate.loader.JoinWalker

org.hibernate.loader.AbstractEntityJoinWalker

org.hibernate.loader.criteria.CriteriaJoinWalker

public class CriteriaJoinWalker
extends AbstractEntityJoinWalker

A JoinWalker for Criteria queries.

Author:

Gavin King

See Also:

CriteriaLoader

Nested Class Summary

Nested classes/interfaces inherited from class org.hibernate.loader.JoinWalker

JoinWalker.AssociationInitCallback

Field Summary

Fields inherited from class org.hibernate.loader.JoinWalker

aliases, associations, collectionOwners, collectionPersisters, collectionSuffixes, lockModeArray, lockOptions, ownerAssociationTypes, owners, persisters, sql, suffixes

Constructor Summary

Constructors

Constructor and Description
CriteriaJoinWalker(OuterJoinLoadable persister, CriteriaQueryTranslator translator, SessionFactoryImplementor factory, CriteriaImpl criteria, String rootEntityName, LoadQueryInfluencers loadQueryInfluencers)
CriteriaJoinWalker(OuterJoinLoadable persister, CriteriaQueryTranslator translator, SessionFactoryImplementor factory, CriteriaImpl criteria, String rootEntityName, LoadQueryInfluencers loadQueryInfluencers, String alias)

Method Summary

Modifier and Type	Method and Description
protected String	generateRootAlias(String tableName)
protected String	generateTableAlias(int n, PropertyPath path, Joinable joinable)
String	getComment()
protected JoinType	getJoinType(AssociationType associationType, FetchMode config, PropertyPath path, String lhsTable, String[] lhsColumns, boolean nullable, int currentDepth, CascadeStyle cascadeStyle) Determine the appropriate associationType of join (if any) to use to fetch the given association.
protected JoinType	getJoinType(OuterJoinLoadable persister, PropertyPath path, int propertyNumber, AssociationType associationType, FetchMode metadataFetchMode, CascadeStyle metadataCascadeStyle, String lhsTable, String[] lhsColumns, boolean nullable, int currentDepth) Determine the appropriate type of join (if any) to use to fetch the given association.
Set	getQuerySpaces()
Type[]	getResultTypes()
String[]	getUserAliases()
protected String	getWhereFragment() Use the discriminator, to narrow the select to instances of the queried subclass, also applying any filters.
protected String	getWithClause(PropertyPath path)
protected boolean	hasRestriction(PropertyPath path)
boolean[]	includeInResultRow()

Methods inherited from class org.hibernate.loader.AbstractEntityJoinWalker

getAlias, getPersister, initAll, initAll, initProjection, isDuplicateAssociation, isJoinedFetchEnabled, isJoinFetchEnabledByProfile, orderBy, toString

Methods inherited from class org.hibernate.loader.JoinWalker

countCollectionPersisters, countEntityPersisters, getAliases, getAssociations, getCollectionOwners, getCollectionPersisters, getCollectionSuffixes, getDialect, getFactory, getJoinType, getLoadQueryInfluencers, getLockModeArray, getLockModeOptions, getOwnerAssociationTypes, getOwners, getPersisters, getSQLString, getSuffixes, initPersisters, initPersisters, initPersisters, isDuplicateAssociation, isJoinable, isJoinedFetchEnabledInMapping, isTooDeep, isTooManyCollections, mergeOrderings, mergeOuterJoins, orderBy, selectString, setAliases, setCollectionOwners, setCollectionPersisters, setCollectionSuffixes, setOwnerAssociationTypes, setOwners, setPersisters, setSql, setSuffixes, walkCollectionTree, walkEntityTree, whereString

Methods inherited from class java.lang.Object

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

Constructor Detail

CriteriaJoinWalker

public CriteriaJoinWalker(OuterJoinLoadable persister,
                          CriteriaQueryTranslator translator,
                          SessionFactoryImplementor factory,
                          CriteriaImpl criteria,
                          String rootEntityName,
                          LoadQueryInfluencers loadQueryInfluencers)

CriteriaJoinWalker

public CriteriaJoinWalker(OuterJoinLoadable persister,
                          CriteriaQueryTranslator translator,
                          SessionFactoryImplementor factory,
                          CriteriaImpl criteria,
                          String rootEntityName,
                          LoadQueryInfluencers loadQueryInfluencers,
                          String alias)

Method Detail

getResultTypes

public Type[] getResultTypes()

getUserAliases

public String[] getUserAliases()

includeInResultRow

public boolean[] includeInResultRow()

getJoinType

protected JoinType getJoinType(OuterJoinLoadable persister,
                               PropertyPath path,
                               int propertyNumber,
                               AssociationType associationType,
                               FetchMode metadataFetchMode,
                               CascadeStyle metadataCascadeStyle,
                               String lhsTable,
                               String[] lhsColumns,
                               boolean nullable,
                               int currentDepth)
                        throws MappingException

Description copied from class: JoinWalker

Determine the appropriate type of join (if any) to use to fetch the given association.

Overrides:

getJoinType in class JoinWalker

Parameters:

persister - The owner of the association.

path - The path to the association

propertyNumber - The property number representing the association.

associationType - The association type.

metadataFetchMode - The metadata-defined fetch mode.

metadataCascadeStyle - The metadata-defined cascade style.

lhsTable - The owner table

lhsColumns - The owner join columns

nullable - Is the association nullable.

currentDepth - Current join depth

Returns:

type of join to use (JoinType.INNER_JOIN, JoinType.LEFT_OUTER_JOIN, or -1 to indicate no joining.

Throws:

MappingException - ??

getJoinType

protected JoinType getJoinType(AssociationType associationType,
                               FetchMode config,
                               PropertyPath path,
                               String lhsTable,
                               String[] lhsColumns,
                               boolean nullable,
                               int currentDepth,
                               CascadeStyle cascadeStyle)
                        throws MappingException

Description copied from class: JoinWalker

Determine the appropriate associationType of join (if any) to use to fetch the given association.

Overrides:

getJoinType in class JoinWalker

Parameters:

associationType - The association associationType.

config - The metadata-defined fetch mode.

path - The path to the association

lhsTable - The owner table

lhsColumns - The owner join columns

nullable - Is the association nullable.

currentDepth - Current join depth

cascadeStyle - The metadata-defined cascade style.

Returns:

type of join to use (JoinType.INNER_JOIN, JoinType.LEFT_OUTER_JOIN, or -1 to indicate no joining.

Throws:

MappingException - ??

getWhereFragment

protected String getWhereFragment()
                           throws MappingException

Use the discriminator, to narrow the select to instances of the queried subclass, also applying any filters.

Overrides:

getWhereFragment in class AbstractEntityJoinWalker

Throws:

MappingException

generateTableAlias

protected String generateTableAlias(int n,
                                    PropertyPath path,
                                    Joinable joinable)

Overrides:

generateTableAlias in class JoinWalker

generateRootAlias

protected String generateRootAlias(String tableName)

Overrides:

generateRootAlias in class JoinWalker

getQuerySpaces

public Set getQuerySpaces()

getComment

public String getComment()

Specified by:

getComment in class AbstractEntityJoinWalker

getWithClause

protected String getWithClause(PropertyPath path)

Overrides:

getWithClause in class JoinWalker

hasRestriction

protected boolean hasRestriction(PropertyPath path)

Overrides:

hasRestriction in class JoinWalker