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 org.springframework.data.repository.query.parser.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(org.springframework.data.repository.query.parser.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(org.springframework.data.repository.query.parser.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(org.springframework.data.repository.query.parser.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(org.springframework.data.repository.query.parser.PartTree tree, org.springframework.data.repository.query.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(org.springframework.data.repository.query.parser.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(org.springframework.data.repository.query.parser.Part part,
                          Iterator<Object> iterator)

Creates Criteria for the given method name part.

Specified by:

create in class org.springframework.data.repository.query.parser.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(org.springframework.data.repository.query.parser.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 org.springframework.data.repository.query.parser.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 org.springframework.data.repository.query.parser.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(org.springframework.data.repository.query.parser.PartTree tree,
                            org.springframework.data.repository.query.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 -