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Remove argument channels from WindowFunctionSupplier
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114 changes: 114 additions & 0 deletions
114
core/trino-main/src/main/java/io/trino/operator/window/MappedWindowIndex.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /* | ||
| * 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 io.trino.operator.window; | ||
|
|
||
| import com.google.common.primitives.Ints; | ||
| import io.airlift.slice.Slice; | ||
| import io.trino.annotation.UsedByGeneratedCode; | ||
| import io.trino.spi.block.Block; | ||
| import io.trino.spi.block.BlockBuilder; | ||
|
|
||
| import java.util.List; | ||
|
|
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| import static java.util.Objects.requireNonNull; | ||
|
|
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| public class MappedWindowIndex | ||
| implements InternalWindowIndex | ||
| { | ||
| private final int[] channelMap; | ||
| private InternalWindowIndex delegate; | ||
|
|
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| public MappedWindowIndex(List<Integer> argumentChannels) | ||
| { | ||
| this.channelMap = Ints.toArray(requireNonNull(argumentChannels, "argumentChannels is null")); | ||
| } | ||
|
|
||
| public void setDelegate(InternalWindowIndex delegate) | ||
| { | ||
| this.delegate = delegate; | ||
| } | ||
|
|
||
| @Override | ||
| public int size() | ||
| { | ||
| return delegate.size(); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean isNull(int channel, int position) | ||
| { | ||
| return delegate.isNull(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean getBoolean(int channel, int position) | ||
| { | ||
| return delegate.getBoolean(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| public long getLong(int channel, int position) | ||
| { | ||
| return delegate.getLong(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| public double getDouble(int channel, int position) | ||
| { | ||
| return delegate.getDouble(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| public Slice getSlice(int channel, int position) | ||
| { | ||
| return delegate.getSlice(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| public Block getSingleValueBlock(int channel, int position) | ||
| { | ||
| return delegate.getSingleValueBlock(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| public Object getObject(int channel, int position) | ||
| { | ||
| return delegate.getObject(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| public void appendTo(int channel, int position, BlockBuilder output) | ||
| { | ||
| delegate.appendTo(toDelegateChannel(channel), position, output); | ||
| } | ||
|
|
||
| @Override | ||
| @UsedByGeneratedCode | ||
| public Block getRawBlock(int channel, int position) | ||
| { | ||
| return delegate.getRawBlock(toDelegateChannel(channel), position); | ||
| } | ||
|
|
||
| @Override | ||
| @UsedByGeneratedCode | ||
| public int getRawBlockPosition(int position) | ||
| { | ||
| return delegate.getRawBlockPosition(position); | ||
| } | ||
|
|
||
| private int toDelegateChannel(int channel) | ||
| { | ||
| return channelMap[channel]; | ||
| } | ||
| } |
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