| /* |
| * 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.phoenix.filter; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.hbase.exceptions.DeserializationException; |
| import org.apache.hadoop.hbase.util.Writables; |
| import org.apache.phoenix.expression.Expression; |
| import org.apache.phoenix.hbase.index.util.ImmutableBytesPtr; |
| |
| /** |
| * |
| * Filter that evaluates WHERE clause expression, used in the case where there |
| * are references to multiple unique column qualifiers over one or more column families. |
| * |
| */ |
| public class MultiCQKeyValueComparisonFilter extends MultiKeyValueComparisonFilter { |
| private ImmutableBytesPtr ptr = new ImmutableBytesPtr(); |
| |
| public MultiCQKeyValueComparisonFilter() { |
| } |
| |
| public MultiCQKeyValueComparisonFilter(Expression expression) { |
| super(expression); |
| } |
| |
| @Override |
| protected Object setColumnKey(byte[] cf, int cfOffset, int cfLength, byte[] cq, int cqOffset, |
| int cqLength) { |
| ptr.set(cq, cqOffset, cqLength); |
| return ptr; |
| } |
| |
| @Override |
| protected Object newColumnKey(byte[] cf, int cfOffset, int cfLength, byte[] cq, int cqOffset, |
| int cqLength) { |
| byte[] cfKey; |
| if (cfOffset == 0 && cf.length == cfLength) { |
| cfKey = cf; |
| } else { |
| cfKey = new byte[cfLength]; |
| System.arraycopy(cf, cfOffset, cfKey, 0, cfLength); |
| } |
| cfSet.add(cfKey); |
| return new ImmutableBytesPtr(cq, cqOffset, cqLength); |
| } |
| |
| public static MultiCQKeyValueComparisonFilter parseFrom(final byte [] pbBytes) throws DeserializationException { |
| try { |
| return (MultiCQKeyValueComparisonFilter)Writables.getWritable(pbBytes, new MultiCQKeyValueComparisonFilter()); |
| } catch (IOException e) { |
| throw new DeserializationException(e); |
| } |
| } |
| } |