| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * Licensed 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 from |
| * |
| * 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 edu.uci.ics.hyracks.dataflow.common.data.accessors; |
| |
| import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor; |
| |
| public final class FrameTupleReference implements IFrameTupleReference { |
| private IFrameTupleAccessor fta; |
| private int tIndex; |
| |
| public void reset(IFrameTupleAccessor fta, int tIndex) { |
| this.fta = fta; |
| this.tIndex = tIndex; |
| } |
| |
| @Override |
| public IFrameTupleAccessor getFrameTupleAccessor() { |
| return fta; |
| } |
| |
| @Override |
| public int getTupleIndex() { |
| return tIndex; |
| } |
| |
| @Override |
| public int getFieldCount() { |
| return fta.getFieldCount(); |
| } |
| |
| @Override |
| public byte[] getFieldData(int fIdx) { |
| return fta.getBuffer().array(); |
| } |
| |
| @Override |
| public int getFieldStart(int fIdx) { |
| return fta.getTupleStartOffset(tIndex) + fta.getFieldSlotsLength() + fta.getFieldStartOffset(tIndex, fIdx); |
| } |
| |
| @Override |
| public int getFieldLength(int fIdx) { |
| return fta.getFieldLength(tIndex, fIdx); |
| } |
| } |