| /* |
| * 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. |
| */ |
| package org.apache.lucene.queries.function.docvalues; |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.queries.function.FunctionValues; |
| import org.apache.lucene.queries.function.ValueSource; |
| import org.apache.lucene.util.mutable.MutableValue; |
| import org.apache.lucene.util.mutable.MutableValueBool; |
| |
| /** |
| * Abstract {@link FunctionValues} implementation which supports retrieving boolean values. |
| * Implementations can control how the boolean values are loaded through {@link #boolVal(int)}} |
| */ |
| public abstract class BoolDocValues extends FunctionValues { |
| protected final ValueSource vs; |
| |
| public BoolDocValues(ValueSource vs) { |
| this.vs = vs; |
| } |
| |
| @Override |
| public abstract boolean boolVal(int doc) throws IOException; |
| |
| @Override |
| public byte byteVal(int doc) throws IOException { |
| return boolVal(doc) ? (byte)1 : (byte)0; |
| } |
| |
| @Override |
| public short shortVal(int doc) throws IOException { |
| return boolVal(doc) ? (short)1 : (short)0; |
| } |
| |
| @Override |
| public float floatVal(int doc) throws IOException { |
| return boolVal(doc) ? (float)1 : (float)0; |
| } |
| |
| @Override |
| public int intVal(int doc) throws IOException { |
| return boolVal(doc) ? 1 : 0; |
| } |
| |
| @Override |
| public long longVal(int doc) throws IOException { |
| return boolVal(doc) ? (long)1 : (long)0; |
| } |
| |
| @Override |
| public double doubleVal(int doc) throws IOException { |
| return boolVal(doc) ? (double)1 : (double)0; |
| } |
| |
| @Override |
| public String strVal(int doc) throws IOException { |
| return Boolean.toString(boolVal(doc)); |
| } |
| |
| @Override |
| public Object objectVal(int doc) throws IOException { |
| return exists(doc) ? boolVal(doc) : null; |
| } |
| |
| @Override |
| public String toString(int doc) throws IOException { |
| return vs.description() + '=' + strVal(doc); |
| } |
| |
| @Override |
| public ValueFiller getValueFiller() { |
| return new ValueFiller() { |
| private final MutableValueBool mval = new MutableValueBool(); |
| |
| @Override |
| public MutableValue getValue() { |
| return mval; |
| } |
| |
| @Override |
| public void fillValue(int doc) throws IOException { |
| mval.value = boolVal(doc); |
| mval.exists = exists(doc); |
| } |
| }; |
| } |
| } |