/*
*
* 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.marshal;
import java.nio.ByteBuffer;
import java.sql.Types;
import org.apache.cassandra.db.Column;
import org.apache.cassandra.db.context.CounterContext;
import org.apache.cassandra.utils.ByteBufferUtil;
public abstract class AbstractCommutativeType extends AbstractType<Long>
{
public boolean isCommutative()
{
return true;
}
public Long compose(ByteBuffer bytes)
{
return CounterContext.instance().total(bytes);
}
public ByteBuffer decompose(Long value)
{
return ByteBufferUtil.bytes(value);
}
/**
* create commutative column
*/
public abstract Column createColumn(ByteBuffer name, ByteBuffer value, long timestamp);
public Class<Long> getType()
{
return Long.class;
}
public boolean isSigned()
{
return true;
}
public boolean isCaseSensitive()
{
return false;
}
public boolean isCurrency()
{
return false;
}
public int getPrecision(Long obj)
{
return obj.toString().length();
}
public int getScale(Long obj)
{
return 0;
}
public int getJdbcType()
{
return Types.INTEGER;
}
public boolean needsQuotes()
{
return false;
}
}