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A fork of the Apache Cassandra Project ready to embed Elasticsearch.
/*
* 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.util.HashMap;
import java.util.Map;
import java.util.List;
import org.apache.cassandra.cql3.CQL3Type;
import org.apache.cassandra.cql3.Term;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.exceptions.SyntaxException;
import org.apache.cassandra.serializers.MarshalException;
import org.apache.cassandra.serializers.TypeSerializer;
import org.apache.cassandra.transport.ProtocolVersion;
public class ReversedType extends AbstractType
{
// interning instances
private static final Map, ReversedType> instances = new HashMap, ReversedType>();
public final AbstractType baseType;
public static ReversedType getInstance(TypeParser parser) throws ConfigurationException, SyntaxException
{
List> types = parser.getTypeParameters();
if (types.size() != 1)
throw new ConfigurationException("ReversedType takes exactly one argument, " + types.size() + " given");
return getInstance((AbstractType) types.get(0));
}
public static synchronized ReversedType getInstance(AbstractType baseType)
{
ReversedType type = instances.get(baseType);
if (type == null)
{
type = new ReversedType(baseType);
instances.put(baseType, type);
}
return type;
}
private ReversedType(AbstractType baseType)
{
super(ComparisonType.CUSTOM);
this.baseType = baseType;
}
public boolean isEmptyValueMeaningless()
{
return baseType.isEmptyValueMeaningless();
}
public int compareCustom(ByteBuffer o1, ByteBuffer o2)
{
return baseType.compare(o2, o1);
}
@Override
public int compareForCQL(ByteBuffer v1, ByteBuffer v2)
{
return baseType.compare(v1, v2);
}
public String getString(ByteBuffer bytes)
{
return baseType.getString(bytes);
}
public ByteBuffer fromString(String source)
{
return baseType.fromString(source);
}
@Override
public Term fromJSONObject(Object parsed) throws MarshalException
{
return baseType.fromJSONObject(parsed);
}
@Override
public String toJSONString(ByteBuffer buffer, ProtocolVersion protocolVersion)
{
return baseType.toJSONString(buffer, protocolVersion);
}
@Override
public boolean isCompatibleWith(AbstractType otherType)
{
if (!(otherType instanceof ReversedType))
return false;
return this.baseType.isCompatibleWith(((ReversedType) otherType).baseType);
}
@Override
public boolean isValueCompatibleWith(AbstractType otherType)
{
return this.baseType.isValueCompatibleWith(otherType);
}
@Override
public CQL3Type asCQL3Type()
{
return baseType.asCQL3Type();
}
public TypeSerializer getSerializer()
{
return baseType.getSerializer();
}
public boolean referencesUserType(String userTypeName)
{
return baseType.referencesUserType(userTypeName);
}
@Override
protected int valueLengthIfFixed()
{
return baseType.valueLengthIfFixed();
}
@Override
public boolean isReversed()
{
return true;
}
@Override
public String toString()
{
return getClass().getName() + "(" + baseType + ")";
}
}