org.hibernate.envers.query.criteria

Class AggregatedAuditExpression

java.lang.Object

org.hibernate.envers.query.criteria.AggregatedAuditExpression

All Implemented Interfaces:

AuditCriterion, ExtendableCriterion

public class AggregatedAuditExpression
extends Object
implements AuditCriterion, ExtendableCriterion

Author:

Adam Warski (adam at warski dot org), Lukasz Antoniak (lukasz dot antoniak at gmail dot com)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AggregatedAuditExpression.AggregatedMode

Constructor Summary

Constructors

Constructor and Description
AggregatedAuditExpression(String alias, PropertyNameGetter propertyNameGetter, AggregatedAuditExpression.AggregatedMode mode)

Method Summary

Modifier and Type	Method and Description
AggregatedAuditExpression	add(AuditCriterion criterion)
void	addToQuery(EnversService enversService, AuditReaderImplementor versionsReader, Map<String,String> aliasToEntityNameMap, String baseAlias, QueryBuilder qb, Parameters parameters)
AggregatedAuditExpression	computeAggregationInInstanceContext() Compute aggregated expression in the context of each entity instance separately.

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregatedAuditExpression

public AggregatedAuditExpression(String alias,
                                 PropertyNameGetter propertyNameGetter,
                                 AggregatedAuditExpression.AggregatedMode mode)

Method Detail

add

public AggregatedAuditExpression add(AuditCriterion criterion)

Specified by:

add in interface ExtendableCriterion

addToQuery

public void addToQuery(EnversService enversService,
                       AuditReaderImplementor versionsReader,
                       Map<String,String> aliasToEntityNameMap,
                       String baseAlias,
                       QueryBuilder qb,
                       Parameters parameters)

Specified by:

addToQuery in interface AuditCriterion

computeAggregationInInstanceContext

public AggregatedAuditExpression computeAggregationInInstanceContext()

Compute aggregated expression in the context of each entity instance separately. Useful for retrieving latest revisions of all entities of a particular type.
Implementation note: Correlates subquery with the outer query by entity id.

Returns:

this (for method chaining).