X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.5.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/enhancements/association/AssociationFloatProperty.java

diff --git a/lucene-java-3.5.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/enhancements/association/AssociationFloatProperty.java b/lucene-java-3.5.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/enhancements/association/AssociationFloatProperty.java
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+++ b/lucene-java-3.5.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/enhancements/association/AssociationFloatProperty.java
@@ -0,0 +1,74 @@
+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());
+  }
+
+}