/*******************************************************************************
* Copyright 2017 Capital One Services, LLC and Bitwise, Inc.
* 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 hydrograph.engine.transformation.userfunctions.base;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedHashSet;
/**
* The Class ListBasedReusableRow.
*
* @author Bitwise
*
*/
public class ListBasedReusableRow extends ReusableRow {
private ArrayList<Comparable> values;
private HashMap<String, Integer> fieldPos;
public ListBasedReusableRow(LinkedHashSet<String> fields) {
super(fields);
values = new ArrayList<Comparable>();
fieldPos = new HashMap<String, Integer>();
int i = -1;
for (String field : fields) {
i = i + 1;
values.add(null);
fieldPos.put(field, new Integer(i));
}
}
@Override
protected Comparable getFieldInternal(int index) {
return (Comparable) values.get(index);
}
@Override
protected Comparable getFieldInternal(String fieldName) {
return (Comparable) values.get(fieldPos.get(fieldName));
}
@Override
protected void setFieldInternal(int index, Comparable value) {
values.set(index, value);
}
@Override
protected void setFieldInternal(String fieldName, Comparable value) {
values.set(fieldPos.get(fieldName), value);
}
@Override
public Collection<Comparable> getFields() {
return values;
}
}