/*
* 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.restrictions;
import org.apache.cassandra.cql3.QueryOptions;
import org.apache.cassandra.cql3.statements.Bound;
import org.apache.cassandra.db.MultiCBuilder;
A single restriction/clause on one or multiple column.
/**
* A single restriction/clause on one or multiple column.
*/
public interface SingleRestriction extends Restriction
{
public default boolean isSlice()
{
return false;
}
public default boolean isEQ()
{
return false;
}
public default boolean isLIKE()
{
return false;
}
public default boolean isIN()
{
return false;
}
public default boolean isContains()
{
return false;
}
public default boolean isNotNull()
{
return false;
}
public default boolean isMultiColumn()
{
return false;
}
Checks if the specified bound is set or not.
Params: - b – the bound type
Returns: true
if the specified bound is set, false
otherwise
/**
* Checks if the specified bound is set or not.
* @param b the bound type
* @return <code>true</code> if the specified bound is set, <code>false</code> otherwise
*/
public default boolean hasBound(Bound b)
{
return true;
}
Checks if the specified bound is inclusive or not.
Params: - b – the bound type
Returns: true
if the specified bound is inclusive, false
otherwise
/**
* Checks if the specified bound is inclusive or not.
* @param b the bound type
* @return <code>true</code> if the specified bound is inclusive, <code>false</code> otherwise
*/
public default boolean isInclusive(Bound b)
{
return true;
}
Merges this restriction with the specified one.
Restriction are immutable. Therefore merging two restrictions result in a new one.
The reason behind this choice is that it allow a great flexibility in the way the merging can done while
preventing any side effect.
Params: - otherRestriction – the restriction to merge into this one
Returns: the restriction resulting of the merge
/**
* Merges this restriction with the specified one.
*
* <p>Restriction are immutable. Therefore merging two restrictions result in a new one.
* The reason behind this choice is that it allow a great flexibility in the way the merging can done while
* preventing any side effect.</p>
*
* @param otherRestriction the restriction to merge into this one
* @return the restriction resulting of the merge
*/
public SingleRestriction mergeWith(SingleRestriction otherRestriction);
Appends the values of this SingleRestriction
to the specified builder.
Params: - builder – the
MultiCBuilder
to append to. - options – the query options
Returns: the MultiCBuilder
/**
* Appends the values of this <code>SingleRestriction</code> to the specified builder.
*
* @param builder the <code>MultiCBuilder</code> to append to.
* @param options the query options
* @return the <code>MultiCBuilder</code>
*/
public MultiCBuilder appendTo(MultiCBuilder builder, QueryOptions options);
Appends the values of the SingleRestriction
for the specified bound to the specified builder.
Params: - builder – the
MultiCBuilder
to append to. - bound – the bound
- options – the query options
Returns: the MultiCBuilder
/**
* Appends the values of the <code>SingleRestriction</code> for the specified bound to the specified builder.
*
* @param builder the <code>MultiCBuilder</code> to append to.
* @param bound the bound
* @param options the query options
* @return the <code>MultiCBuilder</code>
*/
public default MultiCBuilder appendBoundTo(MultiCBuilder builder, Bound bound, QueryOptions options)
{
return appendTo(builder, options);
}
}