com.github.tennaito.rsql.jpa

Class PredicateBuilder

java.lang.Object

com.github.tennaito.rsql.jpa.PredicateBuilder

public final class PredicateBuilder
extends Object

PredicateBuilder Classe with utility methods for Predicate creation from RSQL AST nodes.

Since:

2015-02-05

Author:

AntonioRabelo Based from CriterionBuilders of rsql-hibernate created by Jakub Jirutka .

Field Summary

Fields

Modifier and Type	Field and Description
static Character	LIKE_WILDCARD

Method Summary

Methods

Modifier and Type	Method and Description
static <T> javax.persistence.criteria.Predicate	createPredicate(cz.jirutka.rsql.parser.ast.ComparisonNode comparison, javax.persistence.criteria.From startRoot, Class<T> entity, javax.persistence.EntityManager entityManager, BuilderTools misc) Create a Predicate from the RSQL AST comparison node.
static <T> javax.persistence.criteria.Predicate	createPredicate(cz.jirutka.rsql.parser.ast.LogicalNode logical, javax.persistence.criteria.From root, Class<T> entity, javax.persistence.EntityManager entityManager, BuilderTools misc) Create a Predicate from the RSQL AST logical node.
static <T> javax.persistence.criteria.Predicate	createPredicate(cz.jirutka.rsql.parser.ast.Node node, javax.persistence.criteria.From root, Class<T> entity, javax.persistence.EntityManager manager, BuilderTools misc) Create a Predicate from the RSQL AST node.
static <T> javax.persistence.criteria.Path<?>	findPropertyPath(String propertyPath, javax.persistence.criteria.Path startRoot, javax.persistence.EntityManager entityManager, BuilderTools misc) Find a property path in the graph from startRoot

Methods inherited from class java.lang.Object

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

Field Detail

LIKE_WILDCARD

public static final Character LIKE_WILDCARD

Method Detail

createPredicate

public static <T> javax.persistence.criteria.Predicate createPredicate(cz.jirutka.rsql.parser.ast.Node node,
                                                       javax.persistence.criteria.From root,
                                                       Class<T> entity,
                                                       javax.persistence.EntityManager manager,
                                                       BuilderTools misc)

Create a Predicate from the RSQL AST node.

Parameters:

node - RSQL AST node.

root - From that predicate expression paths depends on.

entity - The main entity of the query.

manager - JPA EntityManager.

misc - Facade with all necessary tools for predicate creation.

Returns:

Predicate a predicate representation of the Node.

createPredicate

public static <T> javax.persistence.criteria.Predicate createPredicate(cz.jirutka.rsql.parser.ast.LogicalNode logical,
                                                       javax.persistence.criteria.From root,
                                                       Class<T> entity,
                                                       javax.persistence.EntityManager entityManager,
                                                       BuilderTools misc)

Create a Predicate from the RSQL AST logical node.

Parameters:

logical - RSQL AST logical node.

root - From that predicate expression paths depends on.

entity - The main entity of the query.

entityManager - JPA EntityManager.

misc - Facade with all necessary tools for predicate creation.

Returns:

Predicate a predicate representation of the Node.

createPredicate

public static <T> javax.persistence.criteria.Predicate createPredicate(cz.jirutka.rsql.parser.ast.ComparisonNode comparison,
                                                       javax.persistence.criteria.From startRoot,
                                                       Class<T> entity,
                                                       javax.persistence.EntityManager entityManager,
                                                       BuilderTools misc)

Create a Predicate from the RSQL AST comparison node.

Parameters:

comparison - RSQL AST comparison node.

startRoot - From that predicate expression paths depends on.

entity - The main entity of the query.

entityManager - JPA EntityManager.

misc - Facade with all necessary tools for predicate creation.

Returns:

Predicate a predicate representation of the Node.

findPropertyPath

public static <T> javax.persistence.criteria.Path<?> findPropertyPath(String propertyPath,
                                                      javax.persistence.criteria.Path startRoot,
                                                      javax.persistence.EntityManager entityManager,
                                                      BuilderTools misc)

Find a property path in the graph from startRoot

Parameters:

propertyPath - The property path to find.

startRoot - From that property path depends on.

entityManager - JPA EntityManager.

misc - Facade with all necessary tools for predicate creation.

Returns:

The Path for the property path

Throws:

IllegalArgumentException - if attribute of the given property name does not exist