| /* |
| * 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.cassandra.db.composites; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.cassandra.config.CFMetaData; |
| import org.apache.cassandra.cql3.ColumnIdentifier; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| import org.apache.cassandra.utils.memory.AbstractAllocator; |
| import org.apache.cassandra.utils.ObjectSizes; |
| |
| public class CompoundSparseCellName extends CompoundComposite implements CellName |
| { |
| private static final ByteBuffer[] EMPTY_PREFIX = new ByteBuffer[0]; |
| |
| private static final long HEAP_SIZE = ObjectSizes.measure(new CompoundSparseCellName(null, false)); |
| |
| protected final ColumnIdentifier columnName; |
| |
| // Not meant to be used directly, you should use the CellNameType method instead |
| CompoundSparseCellName(ColumnIdentifier columnName, boolean isStatic) |
| { |
| this(EMPTY_PREFIX, columnName, isStatic); |
| } |
| |
| CompoundSparseCellName(ByteBuffer[] elements, ColumnIdentifier columnName, boolean isStatic) |
| { |
| this(elements, elements.length, columnName, isStatic); |
| } |
| |
| CompoundSparseCellName(ByteBuffer[] elements, int size, ColumnIdentifier columnName, boolean isStatic) |
| { |
| super(elements, size, isStatic); |
| this.columnName = columnName; |
| } |
| |
| @Override |
| public long unsharedHeapSize() |
| { |
| return HEAP_SIZE + ObjectSizes.sizeOnHeapOf(elements); |
| } |
| |
| @Override |
| public long unsharedHeapSizeExcludingData() |
| { |
| return HEAP_SIZE + ObjectSizes.sizeOnHeapExcludingData(elements); |
| } |
| |
| public int size() |
| { |
| return size + 1; |
| } |
| |
| public ByteBuffer get(int i) |
| { |
| return i == size ? columnName.bytes : elements[i]; |
| } |
| |
| public int clusteringSize() |
| { |
| return size; |
| } |
| |
| public ColumnIdentifier cql3ColumnName(CFMetaData metadata) |
| { |
| return columnName; |
| } |
| |
| public ByteBuffer collectionElement() |
| { |
| return null; |
| } |
| |
| public boolean isCollectionCell() |
| { |
| return false; |
| } |
| |
| public boolean isSameCQL3RowAs(CellNameType type, CellName other) |
| { |
| if (clusteringSize() != other.clusteringSize() || other.isStatic() != isStatic()) |
| return false; |
| |
| for (int i = 0; i < clusteringSize(); i++) |
| { |
| if (type.subtype(i).compare(elements[i], other.get(i)) != 0) |
| return false; |
| } |
| return true; |
| } |
| |
| public CellName copy(CFMetaData cfm, AbstractAllocator allocator) |
| { |
| if (elements.length == 0) |
| return this; |
| |
| // We don't copy columnName because it's interned in SparseCellNameType |
| return new CompoundSparseCellName(elementsCopy(allocator), columnName, isStatic()); |
| } |
| |
| public static class WithCollection extends CompoundSparseCellName |
| { |
| private static final long HEAP_SIZE = ObjectSizes.measure(new WithCollection(null, ByteBufferUtil.EMPTY_BYTE_BUFFER, false)); |
| |
| private final ByteBuffer collectionElement; |
| |
| WithCollection(ColumnIdentifier columnName, ByteBuffer collectionElement, boolean isStatic) |
| { |
| this(EMPTY_PREFIX, columnName, collectionElement, isStatic); |
| } |
| |
| WithCollection(ByteBuffer[] elements, ColumnIdentifier columnName, ByteBuffer collectionElement, boolean isStatic) |
| { |
| this(elements, elements.length, columnName, collectionElement, isStatic); |
| } |
| |
| WithCollection(ByteBuffer[] elements, int size, ColumnIdentifier columnName, ByteBuffer collectionElement, boolean isStatic) |
| { |
| super(elements, size, columnName, isStatic); |
| this.collectionElement = collectionElement; |
| } |
| |
| public int size() |
| { |
| return size + 2; |
| } |
| |
| public ByteBuffer get(int i) |
| { |
| return i == size + 1 ? collectionElement : super.get(i); |
| } |
| |
| @Override |
| public ByteBuffer collectionElement() |
| { |
| return collectionElement; |
| } |
| |
| @Override |
| public boolean isCollectionCell() |
| { |
| return true; |
| } |
| |
| @Override |
| public CellName copy(CFMetaData cfm, AbstractAllocator allocator) |
| { |
| // We don't copy columnName because it's interned in SparseCellNameType |
| return new CompoundSparseCellName.WithCollection(elements.length == 0 ? elements : elementsCopy(allocator), size, columnName, allocator.clone(collectionElement), isStatic()); |
| } |
| |
| @Override |
| public long unsharedHeapSize() |
| { |
| return HEAP_SIZE + ObjectSizes.sizeOnHeapOf(elements) |
| + ObjectSizes.sizeOnHeapExcludingData(collectionElement); |
| } |
| |
| @Override |
| public long unsharedHeapSizeExcludingData() |
| { |
| return HEAP_SIZE + ObjectSizes.sizeOnHeapExcludingData(elements) |
| + ObjectSizes.sizeOnHeapExcludingData(collectionElement); |
| } |
| } |
| } |