-
Notifications
You must be signed in to change notification settings - Fork 3.6k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Proof-of-concept of Java extension types
- Loading branch information
Showing
7 changed files
with
619 additions
and
10 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
236 changes: 236 additions & 0 deletions
236
java/vector/src/main/java/org/apache/arrow/vector/ExtensionTypeVector.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,236 @@ | ||
| /* | ||
| * 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.arrow.vector; | ||
|
|
||
| import java.util.Iterator; | ||
| import java.util.List; | ||
|
|
||
| import org.apache.arrow.memory.BufferAllocator; | ||
| import org.apache.arrow.memory.OutOfMemoryException; | ||
| import org.apache.arrow.vector.complex.reader.FieldReader; | ||
| import org.apache.arrow.vector.ipc.message.ArrowFieldNode; | ||
| import org.apache.arrow.vector.types.Types.MinorType; | ||
| import org.apache.arrow.vector.types.pojo.Field; | ||
| import org.apache.arrow.vector.util.CallBack; | ||
| import org.apache.arrow.vector.util.TransferPair; | ||
|
|
||
| import io.netty.buffer.ArrowBuf; | ||
|
|
||
| /** | ||
| * A vector that wraps an underlying vector, used to help implement extension types. | ||
| * @param <T> The wrapped vector type. | ||
| */ | ||
| public abstract class ExtensionTypeVector<T extends BaseValueVector & FieldVector> extends BaseValueVector implements | ||
| FieldVector { | ||
|
|
||
| private final T underlyingVector; | ||
|
|
||
| public ExtensionTypeVector(String name, BufferAllocator allocator, T underlyingVector) { | ||
| super(name, allocator); | ||
| this.underlyingVector = underlyingVector; | ||
| } | ||
|
|
||
| /** Get the underlying vector. */ | ||
| public T getUnderlyingVector() { | ||
| return underlyingVector; | ||
| } | ||
|
|
||
| @Override | ||
| public void allocateNew() throws OutOfMemoryException { | ||
| this.underlyingVector.allocateNew(); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean allocateNewSafe() { | ||
| return this.underlyingVector.allocateNewSafe(); | ||
| } | ||
|
|
||
| @Override | ||
| public void reAlloc() { | ||
| this.underlyingVector.reAlloc(); | ||
| } | ||
|
|
||
| @Override | ||
| public void setInitialCapacity(int numRecords) { | ||
| this.underlyingVector.setInitialCapacity(numRecords); | ||
| } | ||
|
|
||
| @Override | ||
| public int getValueCapacity() { | ||
| return this.underlyingVector.getValueCapacity(); | ||
| } | ||
|
|
||
| @Override | ||
| public void reset() { | ||
| this.underlyingVector.reset(); | ||
| } | ||
|
|
||
| @Override | ||
| public Field getField() { | ||
| return this.underlyingVector.getField(); | ||
| } | ||
|
|
||
| @Override | ||
| public MinorType getMinorType() { | ||
| return MinorType.EXTENSIONTYPE; | ||
| } | ||
|
|
||
| @Override | ||
| public TransferPair getTransferPair(String ref, BufferAllocator allocator) { | ||
| return underlyingVector.getTransferPair(ref, allocator); | ||
| } | ||
|
|
||
| @Override | ||
| public TransferPair getTransferPair(String ref, BufferAllocator allocator, CallBack callBack) { | ||
| return underlyingVector.getTransferPair(ref, allocator, callBack); | ||
| } | ||
|
|
||
| @Override | ||
| public TransferPair makeTransferPair(ValueVector target) { | ||
| return underlyingVector.makeTransferPair(target); | ||
| } | ||
|
|
||
| @Override | ||
| public FieldReader getReader() { | ||
| return underlyingVector.getReader(); | ||
| } | ||
|
|
||
| @Override | ||
| public int getBufferSize() { | ||
| return underlyingVector.getBufferSize(); | ||
| } | ||
|
|
||
| @Override | ||
| public int getBufferSizeFor(int valueCount) { | ||
| return underlyingVector.getBufferSizeFor(valueCount); | ||
| } | ||
|
|
||
| @Override | ||
| public ArrowBuf[] getBuffers(boolean clear) { | ||
| return underlyingVector.getBuffers(clear); | ||
| } | ||
|
|
||
| @Override | ||
| public ArrowBuf getValidityBuffer() { | ||
| return underlyingVector.getValidityBuffer(); | ||
| } | ||
|
|
||
| @Override | ||
| public ArrowBuf getDataBuffer() { | ||
| return underlyingVector.getDataBuffer(); | ||
| } | ||
|
|
||
| @Override | ||
| public ArrowBuf getOffsetBuffer() { | ||
| return underlyingVector.getOffsetBuffer(); | ||
| } | ||
|
|
||
| @Override | ||
| public int getValueCount() { | ||
| return underlyingVector.getValueCount(); | ||
| } | ||
|
|
||
| @Override | ||
| public void setValueCount(int valueCount) { | ||
| underlyingVector.setValueCount(valueCount); | ||
| } | ||
|
|
||
| /** | ||
| * Get the extension object at the specified index. | ||
| * | ||
| * <p>Generally, this should access the underlying vector and construct the corresponding Java object from the raw | ||
| * data. | ||
| */ | ||
| @Override | ||
| public abstract Object getObject(int index); | ||
|
|
||
| @Override | ||
| public int getNullCount() { | ||
| return underlyingVector.getNullCount(); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean isNull(int index) { | ||
| return underlyingVector.isNull(index); | ||
| } | ||
|
|
||
| @Override | ||
| public void initializeChildrenFromFields(List<Field> children) { | ||
| underlyingVector.initializeChildrenFromFields(children); | ||
| } | ||
|
|
||
| @Override | ||
| public List<FieldVector> getChildrenFromFields() { | ||
| return underlyingVector.getChildrenFromFields(); | ||
| } | ||
|
|
||
| @Override | ||
| public void loadFieldBuffers(ArrowFieldNode fieldNode, List<ArrowBuf> ownBuffers) { | ||
| underlyingVector.loadFieldBuffers(fieldNode, ownBuffers); | ||
| } | ||
|
|
||
| @Override | ||
| public List<ArrowBuf> getFieldBuffers() { | ||
| return underlyingVector.getFieldBuffers(); | ||
| } | ||
|
|
||
| @Override | ||
| public List<BufferBacked> getFieldInnerVectors() { | ||
| return underlyingVector.getFieldInnerVectors(); | ||
| } | ||
|
|
||
| @Override | ||
| public long getValidityBufferAddress() { | ||
| return underlyingVector.getValidityBufferAddress(); | ||
| } | ||
|
|
||
| @Override | ||
| public long getDataBufferAddress() { | ||
| return underlyingVector.getDataBufferAddress(); | ||
| } | ||
|
|
||
| @Override | ||
| public long getOffsetBufferAddress() { | ||
| return underlyingVector.getOffsetBufferAddress(); | ||
| } | ||
|
|
||
| @Override | ||
| public void clear() { | ||
| underlyingVector.clear(); | ||
| } | ||
|
|
||
| @Override | ||
| public void close() { | ||
| underlyingVector.close(); | ||
| } | ||
|
|
||
| @Override | ||
| public TransferPair getTransferPair(BufferAllocator allocator) { | ||
| return underlyingVector.getTransferPair(allocator); | ||
| } | ||
|
|
||
| @Override | ||
| public Iterator<ValueVector> iterator() { | ||
| return underlyingVector.iterator(); | ||
| } | ||
|
|
||
| @Override | ||
| public BufferAllocator getAllocator() { | ||
| return underlyingVector.getAllocator(); | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.