org.apache.flink.table.planner.plan.logical.CumulativeWindowSpec Maven / Gradle / Ivy
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* distributed with this work for additional information
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* 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
*
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package org.apache.flink.table.planner.plan.logical;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonTypeName;
import java.time.Duration;
import java.util.Objects;
import static org.apache.flink.util.Preconditions.checkNotNull;
import static org.apache.flink.util.TimeUtils.formatWithHighestUnit;
/** Logical representation of a cumulative window specification. */
@JsonTypeName("CumulativeWindow")
public class CumulativeWindowSpec implements WindowSpec {
public static final String FIELD_NAME_MAX_SIZE = "maxSize";
public static final String FIELD_NAME_STEP = "step";
@JsonProperty(FIELD_NAME_MAX_SIZE)
private final Duration maxSize;
@JsonProperty(FIELD_NAME_STEP)
private final Duration step;
@JsonCreator
public CumulativeWindowSpec(
@JsonProperty(FIELD_NAME_MAX_SIZE) Duration maxSize,
@JsonProperty(FIELD_NAME_STEP) Duration step) {
this.maxSize = checkNotNull(maxSize);
this.step = checkNotNull(step);
}
@Override
public String toSummaryString(String windowing) {
return String.format(
"CUMULATE(%s, max_size=[%s], step=[%s])",
windowing, formatWithHighestUnit(maxSize), formatWithHighestUnit(step));
}
public Duration getMaxSize() {
return maxSize;
}
public Duration getStep() {
return step;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
CumulativeWindowSpec that = (CumulativeWindowSpec) o;
return maxSize.equals(that.maxSize) && step.equals(that.step);
}
@Override
public int hashCode() {
return Objects.hash(CumulativeWindowSpec.class, maxSize, step);
}
@Override
public String toString() {
return String.format(
"CUMULATE(max_size=[%s], step=[%s])",
formatWithHighestUnit(maxSize), formatWithHighestUnit(step));
}
}