| /** |
| * 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.tajo.storage; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.tajo.datum.Datum; |
| import org.apache.tajo.datum.IntervalDatum; |
| import org.apache.tajo.datum.ProtobufDatum; |
| import org.apache.tajo.exception.UnsupportedException; |
| |
| /** |
| * An instance of FrameTuple is an immutable tuple. |
| * It contains two tuples and pretends to be one instance of Tuple for |
| * join qual evaluatations. |
| */ |
| public class FrameTuple implements Tuple, Cloneable { |
| private int size; |
| private int leftSize; |
| |
| private Tuple left; |
| private Tuple right; |
| |
| public FrameTuple() {} |
| |
| public FrameTuple(Tuple left, Tuple right) { |
| set(left, right); |
| } |
| |
| public void set(Tuple left, Tuple right) { |
| this.size = left.size() + right.size(); |
| this.left = left; |
| this.leftSize = left.size(); |
| this.right = right; |
| } |
| |
| @Override |
| public int size() { |
| return size; |
| } |
| |
| @Override |
| public boolean contains(int fieldId) { |
| Preconditions.checkArgument(fieldId < size, |
| "Out of field access: " + fieldId); |
| |
| if (fieldId < leftSize) { |
| return left.contains(fieldId); |
| } else { |
| return right.contains(fieldId - leftSize); |
| } |
| } |
| |
| @Override |
| public boolean isNull(int fieldid) { |
| return get(fieldid).isNull(); |
| } |
| |
| @Override |
| public boolean isNotNull(int fieldid) { |
| return !isNull(fieldid); |
| } |
| |
| @Override |
| public void clear() { |
| throw new UnsupportedException(); |
| } |
| |
| @Override |
| public void put(int fieldId, Datum value) { |
| throw new UnsupportedException(); |
| } |
| |
| @Override |
| public void put(int fieldId, Datum[] values) { |
| throw new UnsupportedException(); |
| } |
| |
| @Override |
| public void put(int fieldId, Tuple tuple) { |
| throw new UnsupportedException(); |
| } |
| |
| @Override |
| public void setOffset(long offset) { |
| throw new UnsupportedException(); |
| } |
| |
| @Override |
| public long getOffset() { |
| throw new UnsupportedException(); |
| } |
| |
| @Override |
| public void put(Datum [] values) { |
| throw new UnsupportedException(); |
| } |
| |
| @Override |
| public Datum get(int fieldId) { |
| Preconditions.checkArgument(fieldId < size, |
| "Out of field access: " + fieldId); |
| |
| if (fieldId < leftSize) { |
| return left.get(fieldId); |
| } else { |
| return right.get(fieldId - leftSize); |
| } |
| } |
| |
| @Override |
| public boolean getBool(int fieldId) { |
| return get(fieldId).asBool(); |
| } |
| |
| @Override |
| public byte getByte(int fieldId) { |
| return get(fieldId).asByte(); |
| } |
| |
| @Override |
| public char getChar(int fieldId) { |
| return get(fieldId).asChar(); |
| } |
| |
| @Override |
| public byte [] getBytes(int fieldId) { |
| return get(fieldId).asByteArray(); |
| } |
| |
| @Override |
| public short getInt2(int fieldId) { |
| return get(fieldId).asInt2(); |
| } |
| |
| @Override |
| public int getInt4(int fieldId) { |
| return get(fieldId).asInt4(); |
| } |
| |
| @Override |
| public long getInt8(int fieldId) { |
| return get(fieldId).asInt8(); |
| } |
| |
| @Override |
| public float getFloat4(int fieldId) { |
| return get(fieldId).asFloat4(); |
| } |
| |
| @Override |
| public double getFloat8(int fieldId) { |
| return get(fieldId).asFloat8(); |
| } |
| |
| @Override |
| public String getText(int fieldId) { |
| return get(fieldId).asChars(); |
| } |
| |
| @Override |
| public ProtobufDatum getProtobufDatum(int fieldId) { |
| return (ProtobufDatum) get(fieldId); |
| } |
| |
| @Override |
| public IntervalDatum getInterval(int fieldId) { |
| return (IntervalDatum) get(fieldId); |
| } |
| |
| @Override |
| public char [] getUnicodeChars(int fieldId) { |
| return get(fieldId).asUnicodeChars(); |
| } |
| |
| @Override |
| public Tuple clone() throws CloneNotSupportedException { |
| FrameTuple frameTuple = (FrameTuple) super.clone(); |
| frameTuple.set(this.left.clone(), this.right.clone()); |
| return frameTuple; |
| } |
| |
| @Override |
| public Datum[] getValues(){ |
| throw new UnsupportedException(); |
| } |
| |
| public String toString() { |
| boolean first = true; |
| StringBuilder str = new StringBuilder(); |
| str.append("("); |
| for(int i=0; i < size(); i++) { |
| if(contains(i)) { |
| if(first) { |
| first = false; |
| } else { |
| str.append(", "); |
| } |
| str.append(i) |
| .append("=>") |
| .append(get(i)); |
| } |
| } |
| str.append(")"); |
| return str.toString(); |
| } |
| } |