/*
* 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.cql3.statements;
import java.nio.ByteBuffer;
import java.util.List;
import org.apache.cassandra.exceptions.InvalidRequestException;
import org.apache.cassandra.thrift.IndexOperator;
import org.apache.cassandra.cql3.*;
/**
* A restriction/clause on a column.
* The goal of this class being to group all conditions for a column in a SELECT.
*/
public interface Restriction
{
public boolean isOnToken();
public boolean isSlice();
public boolean isEQ();
public boolean isIN();
public boolean isMultiColumn();
// Only supported for EQ and IN, but it's convenient to have here
public List<ByteBuffer> values(List<ByteBuffer> variables) throws InvalidRequestException;
public static interface EQ extends Restriction {}
public static interface IN extends Restriction
{
public boolean canHaveOnlyOneValue();
}
public static interface Slice extends Restriction
{
public List<ByteBuffer> values(List<ByteBuffer> variables) throws InvalidRequestException;
/** Returns true if the start or end bound (depending on the argument) is set, false otherwise */
public boolean hasBound(Bound b);
public ByteBuffer bound(Bound b, List<ByteBuffer> variables) throws InvalidRequestException;
/** Returns true if the start or end bound (depending on the argument) is inclusive, false otherwise */
public boolean isInclusive(Bound b);
public Relation.Type getRelation(Bound eocBound, Bound inclusiveBound);
public IndexOperator getIndexOperator(Bound b);
public void setBound(Relation.Type type, Term t) throws InvalidRequestException;
}
}