org.springframework.data.relational.repository.query

Class RelationalQueryCreator<T>

java.lang.Object

org.springframework.data.repository.query.parser.AbstractQueryCreator<T,Criteria>

org.springframework.data.relational.repository.query.RelationalQueryCreator<T>

public abstract class RelationalQueryCreator<T>
extends AbstractQueryCreator<T,Criteria>

Implementation of AbstractQueryCreator that creates a query from a PartTree.

Since:

2.0

Author:

Roman Chigvintsev, Mark Paluch

Constructor Summary

Constructors

Constructor and Description
RelationalQueryCreator(PartTree tree, RelationalParameterAccessor accessor) Creates new instance of this class with the given PartTree, RelationalEntityMetadata and ParameterMetadataProvider.

Method Summary

Modifier and Type	Method and Description
protected Criteria	and(Part part, Criteria base, Iterator<Object> iterator) Combines the given Criteria with the new one created for the given method name part using AND.
protected Criteria	create(Part part, Iterator<Object> iterator) Creates Criteria for the given method name part.
protected Criteria	or(Criteria base, Criteria criteria) Combines two Criterias using OR.
static void	validate(PartTree tree, Parameters<?,?> parameters) Validate parameters for the derived query.

Methods inherited from class org.springframework.data.repository.query.parser.AbstractQueryCreator

complete, createQuery, createQuery

Methods inherited from class java.lang.Object

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

Constructor Detail

RelationalQueryCreator

public RelationalQueryCreator(PartTree tree,
                              RelationalParameterAccessor accessor)

Creates new instance of this class with the given PartTree, RelationalEntityMetadata and ParameterMetadataProvider.

Parameters:

tree - part tree, must not be null.

accessor - parameter metadata provider, must not be null.

Method Detail

create

protected Criteria create(Part part,
                          Iterator<Object> iterator)

Creates Criteria for the given method name part.

Specified by:

create in class AbstractQueryCreator<T,Criteria>

Parameters:

part - method name part, must not be null.

iterator - iterator over query parameter values

Returns:

new instance of Criteria

and

protected Criteria and(Part part,
                       Criteria base,
                       Iterator<Object> iterator)

Combines the given Criteria with the new one created for the given method name part using AND.

Specified by:

and in class AbstractQueryCreator<T,Criteria>

Parameters:

part - method name part, must not be null.

base - Criteria to be combined, must not be null.

iterator - iterator over query parameter values

Returns:

Criteria combination

or

protected Criteria or(Criteria base,
                      Criteria criteria)

Combines two Criterias using OR.

Specified by:

or in class AbstractQueryCreator<T,Criteria>

Parameters:

base - Criteria to be combined, must not be null.

criteria - another Criteria to be combined, must not be null.

Returns:

Criteria combination

validate

public static void validate(PartTree tree,
                            Parameters<?,?> parameters)

Validate parameters for the derived query. Specifically checking that the query method defines scalar parameters and collection parameters where required and that invalid parameter declarations are rejected.

Parameters:

tree -

parameters -