/*
* 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.index.sasi.analyzer.filter;
/**
* Creates a Pipeline object for applying n pieces of logic
* from the provided methods to the builder in a guaranteed order
*/
public class FilterPipelineBuilder
{
private final FilterPipelineTask<?,?> parent;
private FilterPipelineTask<?,?> current;
public FilterPipelineBuilder(FilterPipelineTask<?, ?> first)
{
this(first, first);
}
private FilterPipelineBuilder(FilterPipelineTask<?, ?> first, FilterPipelineTask<?, ?> current)
{
this.parent = first;
this.current = current;
}
public FilterPipelineBuilder add(String name, FilterPipelineTask<?,?> nextTask)
{
this.current.setLast(name, nextTask);
this.current = nextTask;
return this;
}
public FilterPipelineTask<?,?> build()
{
return this.parent;
}
}