package org.apache.lucene.facet.enhancements.association;
import org.apache.lucene.facet.index.attributes.CategoryProperty;
/*
* 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.
*/
/**
* An {@link AssociationProperty} which treats the association as float - the
* association bits are actually float bits, and thus merging two associations
* is done by float summation.
*
* @lucene.experimental
*/
public class AssociationFloatProperty extends AssociationProperty {
/**
* Constructor.
*
* @param value
* The association value.
*/
public AssociationFloatProperty(float value) {
super(Float.floatToIntBits(value));
}
@Override
public boolean equals(Object other) {
if (other == this) {
return true;
}
if (!(other instanceof AssociationFloatProperty)) {
return false;
}
AssociationFloatProperty o = (AssociationFloatProperty) other;
return o.association == this.association;
}
@Override
public int hashCode() {
return "AssociationFloatProperty".hashCode() * 31 + (int) association;
}
public void merge(CategoryProperty other) {
AssociationFloatProperty o = (AssociationFloatProperty) other;
this.association = Float.floatToIntBits(Float
.intBitsToFloat((int) this.association)
+ Float.intBitsToFloat((int) o.association));
}
public float getFloatAssociation() {
return Float.intBitsToFloat((int) association);
}
@Override
public String toString() {
return getClass().getSimpleName() + ": " + Float.intBitsToFloat(getAssociation());
}
}