org.apache.flink.table.runtime.operators.join

类 OuterJoinPaddingUtil

java.lang.Object

org.apache.flink.table.runtime.operators.join.OuterJoinPaddingUtil

所有已实现的接口:

Serializable

public class OuterJoinPaddingUtil
extends Object
implements Serializable

An utility to generate reusable padding results for outer joins.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
OuterJoinPaddingUtil(int leftArity, int rightArity)

方法概要

限定符和类型	方法和说明
BaseRow	padLeft(BaseRow leftRow) Returns a padding result with the given left row.
BaseRow	padRight(BaseRow rightRow) Returns a padding result with the given right row.

从类继承的方法 java.lang.Object

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

构造器详细资料

OuterJoinPaddingUtil

public OuterJoinPaddingUtil(int leftArity,
                            int rightArity)

方法详细资料

padRight

public final BaseRow padRight(BaseRow rightRow)

Returns a padding result with the given right row.

参数:

rightRow - the right row to pad

返回:

the reusable null padding result

padLeft

public final BaseRow padLeft(BaseRow leftRow)

Returns a padding result with the given left row.

参数:

leftRow - the left row to pad

返回:

the reusable null padding result