77 lines
2.5 KiB
Java
77 lines
2.5 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.db.index;
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import java.nio.ByteBuffer;
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import org.apache.cassandra.utils.concurrent.OpOrder;
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import org.apache.cassandra.db.Cell;
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import org.apache.cassandra.utils.FBUtilities;
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/**
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* Base class for Secondary indexes that implement a unique index per column
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*
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*/
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public abstract class PerColumnSecondaryIndex extends SecondaryIndex
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{
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/**
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* Called when a column has been tombstoned or replaced.
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*
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* @param rowKey the underlying row key which is indexed
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* @param col all the column info
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*/
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public abstract void delete(ByteBuffer rowKey, Cell col, OpOrder.Group opGroup);
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/**
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* Called when a column has been removed due to a cleanup operation.
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*/
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public abstract void deleteForCleanup(ByteBuffer rowKey, Cell col, OpOrder.Group opGroup);
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/**
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* insert a column to the index
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*
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* @param rowKey the underlying row key which is indexed
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* @param col all the column info
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*/
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public abstract void insert(ByteBuffer rowKey, Cell col, OpOrder.Group opGroup);
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/**
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* update a column from the index
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*
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* @param rowKey the underlying row key which is indexed
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* @param oldCol the previous column info
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* @param col all the column info
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*/
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public abstract void update(ByteBuffer rowKey, Cell oldCol, Cell col, OpOrder.Group opGroup);
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public String getNameForSystemKeyspace(ByteBuffer column)
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{
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return getIndexName();
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}
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public boolean validate(ByteBuffer rowKey, Cell cell)
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{
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return validate(cell);
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}
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public boolean validate(Cell cell)
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{
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return cell.value().remaining() < FBUtilities.MAX_UNSIGNED_SHORT;
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}
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}
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