org.apache.flink.api.java.summarize

类 StringColumnSummary

java.lang.Object

org.apache.flink.api.java.summarize.ColumnSummary

org.apache.flink.api.java.summarize.StringColumnSummary

@PublicEvolving
public class StringColumnSummary
extends ColumnSummary

Summary for a column of Strings.

构造器概要

构造器

构造器和说明
StringColumnSummary(long nonNullCount, long nullCount, long emptyCount, Integer minLength, Integer maxLength, Double meanLength)

方法概要

限定符和类型	方法和说明
long	getEmptyCount() Number of empty strings e.g. java.lang.String.isEmpty().
Integer	getMaxLength() Longest String length.
Double	getMeanLength()
Integer	getMinLength() Shortest String length.
long	getNonNullCount() The number of non-null values in this column.
long	getNullCount() The number of null values in this column.
String	toString()

从类继承的方法 org.apache.flink.api.java.summarize.ColumnSummary

containsNonNull, containsNull, getTotalCount

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

StringColumnSummary

public StringColumnSummary(long nonNullCount,
                           long nullCount,
                           long emptyCount,
                           Integer minLength,
                           Integer maxLength,
                           Double meanLength)

方法详细资料

getNonNullCount

public long getNonNullCount()

从类复制的说明: ColumnSummary

The number of non-null values in this column.

指定者:

getNonNullCount 在类中 ColumnSummary

getNullCount

public long getNullCount()

从类复制的说明: ColumnSummary

The number of null values in this column.

指定者:

getNullCount 在类中 ColumnSummary

getEmptyCount

public long getEmptyCount()

Number of empty strings e.g. java.lang.String.isEmpty().

getMinLength

public Integer getMinLength()

Shortest String length.

getMaxLength

public Integer getMaxLength()

Longest String length.

getMeanLength

public Double getMeanLength()

toString

public String toString()

覆盖:

toString 在类中 Object