org.apache.flink.api.java.summarize.StringColumnSummary Maven / Gradle / Ivy
/*
* 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.flink.api.java.summarize;
import org.apache.flink.annotation.PublicEvolving;
/**
* Summary for a column of Strings.
*/
@PublicEvolving
public class StringColumnSummary extends ColumnSummary {
private long nonNullCount;
private long nullCount;
private long emptyCount;
private Integer minLength;
private Integer maxLength;
private Double meanLength;
public StringColumnSummary(long nonNullCount, long nullCount, long emptyCount, Integer minLength, Integer maxLength, Double meanLength) {
this.nonNullCount = nonNullCount;
this.nullCount = nullCount;
this.emptyCount = emptyCount;
this.minLength = minLength;
this.maxLength = maxLength;
this.meanLength = meanLength;
}
@Override
public long getNonNullCount() {
return nonNullCount;
}
@Override
public long getNullCount() {
return nullCount;
}
/**
* Number of empty strings e.g. java.lang.String.isEmpty().
*/
public long getEmptyCount() {
return emptyCount;
}
/**
* Shortest String length.
*/
public Integer getMinLength() {
return minLength;
}
/**
* Longest String length.
*/
public Integer getMaxLength() {
return maxLength;
}
public Double getMeanLength() {
return meanLength;
}
@Override
public String toString() {
return "StringColumnSummary{" +
"totalCount=" + getTotalCount() +
", nonNullCount=" + nonNullCount +
", nullCount=" + nullCount +
", emptyCount=" + emptyCount +
", minLength=" + minLength +
", maxLength=" + maxLength +
", meanLength=" + meanLength +
'}';
}
}