org.apache.flink.runtime.operators.udf

类 RangeBoundaryBuilder<T>

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.api.common.functions.RichMapPartitionFunction<T,Object[][]>

org.apache.flink.runtime.operators.udf.RangeBoundaryBuilder<T>

类型参数:

T -

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.MapPartitionFunction<T,Object[][]>, org.apache.flink.api.common.functions.RichFunction

public class RangeBoundaryBuilder<T>
extends org.apache.flink.api.common.functions.RichMapPartitionFunction<T,Object[][]>

Build RangeBoundaries with input records. First, sort the input records, and then select the boundaries with same interval.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
RangeBoundaryBuilder(org.apache.flink.api.common.typeutils.TypeComparatorFactory<T> comparator, int parallelism)

方法概要

限定符和类型	方法和说明
void	mapPartition(Iterable<T> values, org.apache.flink.util.Collector<Object[][]> out)

从类继承的方法 org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

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

RangeBoundaryBuilder

public RangeBoundaryBuilder(org.apache.flink.api.common.typeutils.TypeComparatorFactory<T> comparator,
                            int parallelism)

方法详细资料

mapPartition

public void mapPartition(Iterable<T> values,
                         org.apache.flink.util.Collector<Object[][]> out)
                  throws Exception

指定者:

mapPartition 在接口中 org.apache.flink.api.common.functions.MapPartitionFunction<T,Object[][]>

指定者:

mapPartition 在类中 org.apache.flink.api.common.functions.RichMapPartitionFunction<T,Object[][]>

抛出:

Exception