Package org.hibernate.query.hql.internal

Class SqmTreeCreationHelper

java.lang.Object

org.hibernate.query.hql.internal.SqmTreeCreationHelper

public class SqmTreeCreationHelper
extends Object

Helper for dealing with SQM tree creation

Constructor Summary

Constructors

Constructor	Description
SqmTreeCreationHelper()

Method Summary

Modifier and Type	Method	Description
static String	applyJpaCompliance(String text, SemanticQueryBuilder<?> sqmBuilder)	Handle JPA requirement that variables (aliases) be case-insensitive
static String	extractAlias(HqlParser.VariableContext ctx, SemanticQueryBuilder<?> sqmBuilder)	Extracts an alias ("identification variable")
static String	extractJpaCompliantAlias(HqlParser.VariableContext ctx, SemanticQueryBuilder<?> sqmBuilder)	Extracts an alias ("identification variable"), applying "JPA compliance" by lower-casing
static String	extractVariable(HqlParser.VariableContext ctx, SemanticQueryBuilder<?> sqmBuilder)	Extracts an "identification variable" (alias)
static <E> void	handleRootAsCrossJoin(HqlParser.EntityWithJoinsContext entityWithJoinsContext, SqmRoot<?> sqmPrimaryRoot, SemanticQueryBuilder<?> sqmBuilder)	Handle secondary query roots using cross-join semantics.

Methods inherited from class java.lang.Object

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

Constructor Detail

SqmTreeCreationHelper

public SqmTreeCreationHelper()

Method Detail

handleRootAsCrossJoin

public static <E> void handleRootAsCrossJoin(HqlParser.EntityWithJoinsContext entityWithJoinsContext,
                                             SqmRoot<?> sqmPrimaryRoot,
                                             SemanticQueryBuilder<?> sqmBuilder)

Handle secondary query roots using cross-join semantics.

API Note:

Used when JPA compliance is enabled

extractAlias

public static String extractAlias(HqlParser.VariableContext ctx,
                                  SemanticQueryBuilder<?> sqmBuilder)

Extracts an alias ("identification variable")

Returns:

The specified alias, or null

extractJpaCompliantAlias

public static String extractJpaCompliantAlias(HqlParser.VariableContext ctx,
                                              SemanticQueryBuilder<?> sqmBuilder)

Extracts an alias ("identification variable"), applying "JPA compliance" by lower-casing

Returns:

The specified alias, or null

extractVariable

public static String extractVariable(HqlParser.VariableContext ctx,
                                     SemanticQueryBuilder<?> sqmBuilder)

Extracts an "identification variable" (alias)

Returns:

The specified alias, or null

applyJpaCompliance

public static String applyJpaCompliance(String text,
                                        SemanticQueryBuilder<?> sqmBuilder)

Handle JPA requirement that variables (aliases) be case-insensitive