/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * 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.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.orientechnologies.orient.core.command.traverse;
import java.util.Iterator;
import com.orientechnologies.orient.core.db.record.OIdentifiable;
import com.orientechnologies.orient.core.record.ORecord;
import com.orientechnologies.orient.core.record.impl.ODocument;
public class OTraverseMultiValueProcess extends OTraverseAbstractProcess<Iterator<Object>> {
private final OTraversePath parentPath;
protected Object value;
protected int index = -1;
public OTraverseMultiValueProcess(final OTraverse iCommand, final Iterator<Object> iTarget, OTraversePath parentPath) {
super(iCommand, iTarget);
this.parentPath = parentPath;
}
public OIdentifiable process() {
while (target.hasNext()) {
value = target.next();
index++;
if (value instanceof OIdentifiable) {
final ORecord rec = ((OIdentifiable) value).getRecord();
if (rec instanceof ODocument) {
final OTraverseAbstractProcess<ODocument> subProcess = new OTraverseRecordProcess(command, (ODocument) rec, getPath());
command.getContext().push(subProcess);
return null;
}
}
}
return drop();
}
@Override
public OTraversePath getPath() {
return parentPath.appendIndex(index);
}
@Override
public String toString() {
return "[idx:" + index + "]";
}
}