| /* |
| * 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.geode.cache.query.internal; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.geode.cache.query.AmbiguousNameException; |
| import org.apache.geode.cache.query.FunctionDomainException; |
| import org.apache.geode.cache.query.NameResolutionException; |
| import org.apache.geode.cache.query.QueryInvocationTargetException; |
| import org.apache.geode.cache.query.QueryService; |
| import org.apache.geode.cache.query.TypeMismatchException; |
| |
| |
| /** |
| * Class Description |
| * |
| * @version $Revision: 1.1 $ |
| */ |
| |
| |
| public class CompiledNegation extends AbstractCompiledValue { |
| private CompiledValue _value; |
| |
| public CompiledNegation(CompiledValue value) { |
| _value = value; |
| } |
| |
| @Override |
| public List getChildren() { |
| return Collections.singletonList(this._value); |
| } |
| |
| @Override |
| public int getType() { |
| return LITERAL_not; |
| } |
| |
| @Override |
| public Object evaluate(ExecutionContext context) throws FunctionDomainException, |
| TypeMismatchException, NameResolutionException, QueryInvocationTargetException { |
| return negateObject(_value.evaluate(context)); |
| } |
| |
| @Override |
| public Set computeDependencies(ExecutionContext context) |
| throws TypeMismatchException, AmbiguousNameException, NameResolutionException { |
| return context.addDependencies(this, this._value.computeDependencies(context)); |
| } |
| |
| private Object negateObject(Object obj) throws TypeMismatchException { |
| if (obj instanceof Boolean) |
| return Boolean.valueOf(!((Boolean) obj).booleanValue()); |
| if (obj == null || obj == QueryService.UNDEFINED) |
| return QueryService.UNDEFINED; |
| throw new TypeMismatchException( |
| String.format("%s cannot be negated", obj.getClass())); |
| } |
| |
| @Override |
| public void generateCanonicalizedExpression(StringBuilder clauseBuffer, ExecutionContext context) |
| throws AmbiguousNameException, TypeMismatchException, NameResolutionException { |
| clauseBuffer.insert(0, ')'); |
| _value.generateCanonicalizedExpression(clauseBuffer, context); |
| clauseBuffer.insert(0, "NOT("); |
| } |
| |
| } |