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/*
* 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 opennlp.model;
import java.io.IOException;
/**
* A object which can deliver a stream of training events for the GIS procedure
* (or others such as IIS if and when they are implemented). EventStreams don't
* need to use opennlp.maxent.DataStreams, but doing so would provide greater
* flexibility for producing events from data stored in different formats.
*/
public interface EventStream {
/**
* Returns the next Event object held in this EventStream.
*
* @return the Event object which is next in this EventStream
*/
public Event next() throws IOException;
/**
* Test whether there are any Events remaining in this EventStream.
*
* @return true if this EventStream has more Events
*/
public boolean hasNext() throws IOException;
}
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