org.springframework.data.jpa.convert

Class QueryByExamplePredicateBuilder

java.lang.Object

org.springframework.data.jpa.convert.QueryByExamplePredicateBuilder

public class QueryByExamplePredicateBuilder
extends Object

QueryByExamplePredicateBuilder creates a single CriteriaBuilder.and(Predicate...) combined Predicate for a given Example.
The builder includes any SingularAttribute of the Example.getProbe() applying String and null matching strategies configured on the Example. Ignored paths are no matter of their actual value not considered.

Since:

1.10

Author:

Christoph Strobl, Mark Paluch, Oliver Gierke, Jens Schauder

Constructor Summary

Constructors

Constructor and Description
QueryByExamplePredicateBuilder()

Method Summary

Modifier and Type	Method and Description
static <T> javax.persistence.criteria.Predicate	getPredicate(javax.persistence.criteria.Root<T> root, javax.persistence.criteria.CriteriaBuilder cb, Example<T> example) Extract the Predicate representing the Example.
static <T> javax.persistence.criteria.Predicate	getPredicate(javax.persistence.criteria.Root<T> root, javax.persistence.criteria.CriteriaBuilder cb, Example<T> example, EscapeCharacter escapeCharacter) Extract the Predicate representing the Example.

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryByExamplePredicateBuilder

public QueryByExamplePredicateBuilder()

Method Detail

getPredicate

public static <T> javax.persistence.criteria.Predicate getPredicate(javax.persistence.criteria.Root<T> root,
                                                                    javax.persistence.criteria.CriteriaBuilder cb,
                                                                    Example<T> example)

Extract the Predicate representing the Example.

Parameters:

root - must not be null.

cb - must not be null.

example - must not be null.

Returns:

never null.

getPredicate

public static <T> javax.persistence.criteria.Predicate getPredicate(javax.persistence.criteria.Root<T> root,
                                                                    javax.persistence.criteria.CriteriaBuilder cb,
                                                                    Example<T> example,
                                                                    EscapeCharacter escapeCharacter)

Extract the Predicate representing the Example.

Parameters:

root - must not be null.

cb - must not be null.

example - must not be null.

escapeCharacter - Must not be null.

Returns:

never null.