com.querydsl.sql.SQLCommonQueryFactory Maven / Gradle / Ivy
/*
* Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.querydsl.sql;
import com.querydsl.core.QueryFactory;
import com.querydsl.core.types.Expression;
import com.querydsl.core.types.Path;
import com.querydsl.core.types.SubQueryExpression;
import com.querydsl.sql.dml.SQLDeleteClause;
import com.querydsl.sql.dml.SQLInsertClause;
import com.querydsl.sql.dml.SQLMergeClause;
import com.querydsl.sql.dml.SQLUpdateClause;
/**
* Factory interface for query and clause creation.
*
* The default implementation is {@link SQLQueryFactory} and should be used for general
* query creation. Type specific variants are available if database specific queries need to be created.
*
* @author tiwe
*
* @param query type
* @param delete clause type
* @param update clause type
* @param insert clause type
* @param merge clause type
*/
public interface SQLCommonQueryFactory, // extends AbstractSQLQuery
D extends SQLDeleteClause,
U extends SQLUpdateClause,
I extends SQLInsertClause,
M extends SQLMergeClause> extends QueryFactory {
/**
* Create a new DELETE clause
*
* @param path table to delete from
* @return delete clause
*/
D delete(RelationalPath path);
/**
* Create a new SELECT query
*
* @param from query source
* @return query
*/
Q from(Expression from);
/**
* Create a new SELECT query
*
* @param from query sources
* @return query
*/
Q from(Expression... from);
/**
* Create a new SELECT query
*
* @param subQuery query source
* @param alias alias
* @return query
*/
Q from(SubQueryExpression subQuery, Path alias);
/**
* Create a new INSERT INTO clause
*
* @param path table to insert to
* @return insert clause
*/
I insert(RelationalPath path);
/**
* Create a new MERGE clause
*
* @param path table to merge into
* @return merge clause
*/
M merge(RelationalPath path);
/**
* Create a new UPDATE clause
*
* @param path table to update
* @return update clause
*/
U update(RelationalPath path);
/* (non-Javadoc)
* @see com.querydsl.core.QueryFactory#query()
*/
@Override
Q query();
}