org.apache.flink.runtime.state.gemini.engine.filter.TtlStateFilter Maven / Gradle / Ivy
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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
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package org.apache.flink.runtime.state.gemini.engine.filter;
import org.apache.flink.runtime.state.gemini.engine.GRegionContext;
import org.apache.flink.runtime.state.gemini.engine.dbms.GContext;
import org.apache.flink.runtime.state.gemini.engine.utils.SeqIDUtils;
/**
* A {@link StateFilter} to filter expired states.
*/
public class TtlStateFilter implements StateFilter {
@Override
public boolean filter(GRegionContext gRegionContext, long seqID) {
GContext gContext = gRegionContext.getGContext();
long ts = SeqIDUtils.timestamp(seqID);
long currentTime = gContext.getTimeProvider().currentTimestamp();
return gContext.isExpired(ts, currentTime);
}
}