Package google.registry.persistence.transaction

Class CriteriaQueryBuilder<T>

java.lang.Object

google.registry.persistence.transaction.CriteriaQueryBuilder<T>

public class CriteriaQueryBuilder<T>
extends Object

An extension of CriteriaQuery that uses a Builder-style pattern when adding "WHERE" and/or "ORDER BY" clauses.

CriteriaQuery, as is, requires that all clauses must be passed in at once -- if one calls "WHERE" multiple times, the later call overwrites the earlier call.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CriteriaQueryBuilder.WhereOperator<U>	Functional interface that defines the 'where' operator, e.g.

Method Summary

Modifier and Type	Method	Description
javax.persistence.criteria.CriteriaQuery<T>	build()	Builds and returns the query, applying all WHERE and ORDER BY clauses at once.
static <T> CriteriaQueryBuilder<T>	create(JpaTransactionManager jpaTm, Class<T> clazz)	Creates a query builder for the given entity manager.
static <T> CriteriaQueryBuilder<T>	create(Class<T> clazz)	Creates a query builder that will SELECT from the given class.
static <T> CriteriaQueryBuilder<Long>	createCount(JpaTransactionManager jpaTm, Class<T> clazz)	Creates a "count" query for the table for the class.
CriteriaQueryBuilder<T>	orderByAsc(String fieldName)	Orders the result by the given field ascending.
CriteriaQueryBuilder<T>	orderByDesc(String fieldName)	Orders the result by the given field descending.
<U> CriteriaQueryBuilder<T>	where(String fieldName, CriteriaQueryBuilder.WhereOperator<U> whereClause, U value)	Adds a WHERE clause to the query, given the specified operation, field, and value.
CriteriaQueryBuilder<T>	whereFieldContains(String fieldName, Object value)	Adds a WHERE clause to the query specifying that a collection field must contain a particular value.
CriteriaQueryBuilder<T>	whereFieldIsIn(String fieldName, Collection<?> values)	Adds a WHERE clause to the query specifying that a value must be in the given collection.
CriteriaQueryBuilder<T>	whereFieldIsNotIn(String fieldName, Collection<?> values)	Adds a WHERE clause to the query specifying that a value must not be in the given collection.

Methods inherited from class java.lang.Object

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

Method Details

where

public <U> CriteriaQueryBuilder<T> where(String fieldName,
 CriteriaQueryBuilder.WhereOperator<U> whereClause,
 U value)

Adds a WHERE clause to the query, given the specified operation, field, and value.

whereFieldIsIn

public CriteriaQueryBuilder<T> whereFieldIsIn(String fieldName,
 Collection<?> values)

Adds a WHERE clause to the query specifying that a value must be in the given collection.

whereFieldIsNotIn

public CriteriaQueryBuilder<T> whereFieldIsNotIn(String fieldName,
 Collection<?> values)

Adds a WHERE clause to the query specifying that a value must not be in the given collection.

whereFieldContains

public CriteriaQueryBuilder<T> whereFieldContains(String fieldName,
 Object value)

Adds a WHERE clause to the query specifying that a collection field must contain a particular value.

orderByAsc

public CriteriaQueryBuilder<T> orderByAsc(String fieldName)

Orders the result by the given field ascending.

orderByDesc

public CriteriaQueryBuilder<T> orderByDesc(String fieldName)

Orders the result by the given field descending.

build

public javax.persistence.criteria.CriteriaQuery<T> build()

Builds and returns the query, applying all WHERE and ORDER BY clauses at once.

create

public static <T> CriteriaQueryBuilder<T> create(Class<T> clazz)

Creates a query builder that will SELECT from the given class.

create

public static <T> CriteriaQueryBuilder<T> create(JpaTransactionManager jpaTm,
 Class<T> clazz)

Creates a query builder for the given entity manager.

createCount

public static <T> CriteriaQueryBuilder<Long> createCount(JpaTransactionManager jpaTm,
 Class<T> clazz)

Creates a "count" query for the table for the class.