/*****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.cayenne.dbsync.merge.builders;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.DbJoin;
import org.apache.cayenne.map.DbRelationship;
/**
* @since 4.0.
*/
public class DbRelationshipBuilder extends DefaultBuilder<DbRelationship> {
private String[] from;
private String[] to;
public DbRelationshipBuilder() {
super(new DbRelationship());
}
public DbRelationshipBuilder(String name) {
super(new DbRelationship(name));
}
public DbRelationshipBuilder(DbRelationship obj) {
super(obj);
}
public DbRelationshipBuilder name() {
return name(getRandomJavaName());
}
public DbRelationshipBuilder name(String name) {
obj.setName(name);
return this;
}
public DbRelationshipBuilder from(DbEntity entity, String ... columns) {
obj.setSourceEntity(entity);
this.from = columns;
return this;
}
public DbRelationshipBuilder to(String entityName, String ... columns) {
obj.setTargetEntityName(entityName);
this.to = columns;
return this;
}
@Override
public DbRelationship build() {
if (obj.getName() == null) {
name();
}
if (from.length != to.length) {
throw new IllegalStateException("from and to columns name size mismatch");
}
for (int i = 0; i < from.length; i++) {
obj.addJoin(new DbJoin(obj, from[i], to[i]));
}
return obj;
}
}