Package org.hibernate.query.sqm.spi

Class SqmCreationHelper

java.lang.Object

org.hibernate.query.sqm.spi.SqmCreationHelper

@Internal
public class SqmCreationHelper
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	IMPLICIT_ALIAS	This is a special alias that we use for implicit joins within the FROM clause.

Method Summary

Modifier and Type	Method	Description
static String	acquireUniqueAlias()	Deprecated. This method returns a globally-unique alias which introduces a temporal dependence in the query interpretation process, leading to misses on the query interpretation cache.
static NavigablePath	buildRootNavigablePath(String base, String alias)
static NavigablePath	buildSubNavigablePath(SqmPath<?> lhs, String subNavigable, String alias)
static NavigablePath	buildSubNavigablePath(NavigablePath lhs, String base, String alias)
static SqmPredicate	combinePredicates(SqmPredicate baseRestriction, Predicate... incomingRestrictions)
static SqmPredicate	combinePredicates(SqmPredicate baseRestriction, List<Predicate> incomingRestrictions)
static SqmPredicate	combinePredicates(SqmPredicate baseRestriction, JpaPredicate... incomingRestrictions)
static SqmPredicate	combinePredicates(SqmPredicate baseRestriction, SqmPredicate incomingRestriction)
static String	determineAlias(String alias)	Deprecated. When the argument is null, this method returns a globally-unique alias which introduces a temporal dependence in the query interpretation process, leading to misses on the query interpretation cache.

Methods inherited from class java.lang.Object

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

Field Details

IMPLICIT_ALIAS

public static final String IMPLICIT_ALIAS

This is a special alias that we use for implicit joins within the FROM clause. Passing this alias will cause that we don't generate a unique alias for a path, but instead use a null alias. The effect of this is, that we use the same table group for a query like `... exists ( from alias.intermediate.attribute where alias.intermediate.otherAttribute is not null )` for the path in the FROM clause and the one in the WHERE clause.

See Also:

• Constant Field Values

Method Details

buildRootNavigablePath

public static NavigablePath buildRootNavigablePath(String base,
 String alias)

buildSubNavigablePath

public static NavigablePath buildSubNavigablePath(NavigablePath lhs,
 String base,
 String alias)

acquireUniqueAlias

@Deprecated(since="7")
public static String acquireUniqueAlias()

Deprecated.

This method returns a globally-unique alias which introduces a temporal dependence in the query interpretation process, leading to misses on the query interpretation cache. Aliases only need to be unique in the scope of a given query, and so alias generation should be contextual to the query.

DO NOT USE ME

determineAlias

@Deprecated(since="7")
public static String determineAlias(String alias)

Deprecated.

When the argument is null, this method returns a globally-unique alias which introduces a temporal dependence in the query interpretation process, leading to misses on the query interpretation cache.

DO NOT USE ME

buildSubNavigablePath

public static NavigablePath buildSubNavigablePath(SqmPath<?> lhs,
 String subNavigable,
 String alias)

combinePredicates

public static SqmPredicate combinePredicates(SqmPredicate baseRestriction,
 List<Predicate> incomingRestrictions)

combinePredicates

public static SqmPredicate combinePredicates(SqmPredicate baseRestriction,
 JpaPredicate... incomingRestrictions)

combinePredicates

public static SqmPredicate combinePredicates(SqmPredicate baseRestriction,
 Predicate... incomingRestrictions)

combinePredicates

public static SqmPredicate combinePredicates(SqmPredicate baseRestriction,
 SqmPredicate incomingRestriction)