/
GroupByIdBlock.java
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/
GroupByIdBlock.java
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/*
* 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 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 com.facebook.presto.operator;
import com.facebook.presto.spi.block.Block;
import com.facebook.presto.spi.block.BlockBuilder;
import io.airlift.slice.Slice;
import org.openjdk.jol.info.ClassLayout;
import java.util.function.BiConsumer;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
import static com.google.common.base.MoreObjects.toStringHelper;
import static java.util.Objects.requireNonNull;
public class GroupByIdBlock
implements Block
{
private static final int INSTANCE_SIZE = ClassLayout.parseClass(GroupByIdBlock.class).instanceSize();
private final long groupCount;
private final Block block;
public GroupByIdBlock(long groupCount, Block block)
{
requireNonNull(block, "block is null");
this.groupCount = groupCount;
this.block = block;
}
public long getGroupCount()
{
return groupCount;
}
public long getGroupId(int position)
{
return BIGINT.getLong(block, position);
}
@Override
public Block getRegion(int positionOffset, int length)
{
return block.getRegion(positionOffset, length);
}
@Override
public long getRegionSizeInBytes(int positionOffset, int length)
{
return block.getRegionSizeInBytes(positionOffset, length);
}
@Override
public Block copyRegion(int positionOffset, int length)
{
return block.copyRegion(positionOffset, length);
}
@Override
public int getSliceLength(int position)
{
return block.getSliceLength(position);
}
@Override
public byte getByte(int position, int offset)
{
return block.getByte(position, offset);
}
@Override
public short getShort(int position, int offset)
{
return block.getShort(position, offset);
}
@Override
public int getInt(int position, int offset)
{
return block.getInt(position, offset);
}
@Override
public long getLong(int position, int offset)
{
return block.getLong(position, offset);
}
@Override
public Slice getSlice(int position, int offset, int length)
{
return block.getSlice(position, offset, length);
}
@Override
public <T> T getObject(int position, Class<T> clazz)
{
return block.getObject(position, clazz);
}
@Override
public boolean bytesEqual(int position, int offset, Slice otherSlice, int otherOffset, int length)
{
return block.bytesEqual(position, offset, otherSlice, otherOffset, length);
}
@Override
public int bytesCompare(int position, int offset, int length, Slice otherSlice, int otherOffset, int otherLength)
{
return block.bytesCompare(position, offset, length, otherSlice, otherOffset, otherLength);
}
@Override
public void writeBytesTo(int position, int offset, int length, BlockBuilder blockBuilder)
{
block.writeBytesTo(position, offset, length, blockBuilder);
}
@Override
public void writePositionTo(int position, BlockBuilder blockBuilder)
{
block.writePositionTo(position, blockBuilder);
}
@Override
public boolean equals(int position, int offset, Block otherBlock, int otherPosition, int otherOffset, int length)
{
return block.equals(position, offset, otherBlock, otherPosition, otherOffset, length);
}
@Override
public long hash(int position, int offset, int length)
{
return block.hash(position, offset, length);
}
@Override
public int compareTo(int leftPosition, int leftOffset, int leftLength, Block rightBlock, int rightPosition, int rightOffset, int rightLength)
{
return block.compareTo(leftPosition, leftOffset, leftLength, rightBlock, rightPosition, rightOffset, rightLength);
}
@Override
public Block getSingleValueBlock(int position)
{
return block.getSingleValueBlock(position);
}
@Override
public boolean isNull(int position)
{
return block.isNull(position);
}
@Override
public int getPositionCount()
{
return block.getPositionCount();
}
@Override
public long getSizeInBytes()
{
return block.getSizeInBytes();
}
@Override
public long getRetainedSizeInBytes()
{
return INSTANCE_SIZE + block.getRetainedSizeInBytes();
}
@Override
public void retainedBytesForEachPart(BiConsumer<Object, Long> consumer)
{
consumer.accept(block, block.getRetainedSizeInBytes());
consumer.accept(this, (long) INSTANCE_SIZE);
}
@Override
public String getEncodingName()
{
throw new UnsupportedOperationException("GroupByIdBlock does not support serialization");
}
@Override
public Block copyPositions(int[] positions, int offset, int length)
{
return block.copyPositions(positions, offset, length);
}
@Override
public void assureLoaded()
{
}
@Override
public String toString()
{
return toStringHelper(this)
.add("groupCount", groupCount)
.add("positionCount", getPositionCount())
.toString();
}
}