/*
* Copyright 2010 Outerthought bvba
*
* 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 org.lilyproject.hbaseindex;
import com.gotometrics.orderly.FloatRowKey;
import com.gotometrics.orderly.RowKey;
import com.gotometrics.orderly.Termination;
import org.codehaus.jackson.node.ObjectNode;
/**
* An IndexFieldDefinition for floats.
*
* <p>Note that since float representation is always approximative, it is
* better suited for range queries than equals queries.
*/
public class FloatIndexFieldDefinition extends IndexFieldDefinition {
public FloatIndexFieldDefinition() {
// hadoop serialization
}
public FloatIndexFieldDefinition(String name) {
super(name);
}
public FloatIndexFieldDefinition(String name, ObjectNode jsonObject) {
super(name, jsonObject);
}
@Override
RowKey asRowKey() {
final FloatRowKey rowKey = new FloatRowKey();
rowKey.setOrder(this.getOrder());
return rowKey;
}
@Override
RowKey asRowKeyWithoutTermination() {
final RowKey rowKey = asRowKey();
rowKey.setTermination(Termination.SHOULD_NOT);
return rowKey;
}
}