1 package org.apache.lucene.facet.enhancements.association;
3 import org.apache.lucene.facet.index.attributes.CategoryProperty;
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements. See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License. You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
23 * An {@link AssociationProperty} which treats the association as float - the
24 * association bits are actually float bits, and thus merging two associations
25 * is done by float summation.
27 * @lucene.experimental
29 public class AssociationFloatProperty extends AssociationProperty {
35 * The association value.
37 public AssociationFloatProperty(float value) {
38 super(Float.floatToIntBits(value));
42 public boolean equals(Object other) {
46 if (!(other instanceof AssociationFloatProperty)) {
49 AssociationFloatProperty o = (AssociationFloatProperty) other;
50 return o.association == this.association;
54 public int hashCode() {
55 return "AssociationFloatProperty".hashCode() * 31 + (int) association;
58 public void merge(CategoryProperty other) {
59 AssociationFloatProperty o = (AssociationFloatProperty) other;
60 this.association = Float.floatToIntBits(Float
61 .intBitsToFloat((int) this.association)
62 + Float.intBitsToFloat((int) o.association));
65 public float getFloatAssociation() {
66 return Float.intBitsToFloat((int) association);
70 public String toString() {
71 return getClass().getSimpleName() + ": " + Float.intBitsToFloat(getAssociation());