org.apache.flink.cep.functions.adaptors

类 PatternSelectAdapter<IN,OUT>

java.lang.Object

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

org.apache.flink.cep.functions.PatternProcessFunction<IN,OUT>

org.apache.flink.cep.functions.adaptors.PatternSelectAdapter<IN,OUT>

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction

直接已知子类:

PatternTimeoutSelectAdapter

@Internal
public class PatternSelectAdapter<IN,OUT>
extends PatternProcessFunction<IN,OUT>

Adapter that expresses PatternSelectFunction with PatternProcessFunction.

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.cep.functions.PatternProcessFunction

PatternProcessFunction.Context

构造器概要

构造器

构造器和说明
PatternSelectAdapter(PatternSelectFunction<IN,OUT> selectFunction)

方法概要

限定符和类型	方法和说明
void	close()
void	open(org.apache.flink.configuration.Configuration parameters)
void	processMatch(Map<String,List<IN>> match, PatternProcessFunction.Context ctx, org.apache.flink.util.Collector<OUT> out) Generates resulting elements given a map of detected pattern events.

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

getIterationRuntimeContext, getRuntimeContext, 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

PatternSelectAdapter

public PatternSelectAdapter(PatternSelectFunction<IN,OUT> selectFunction)

方法详细资料

open

public void open(org.apache.flink.configuration.Configuration parameters)
          throws Exception

指定者:

open 在接口中 org.apache.flink.api.common.functions.RichFunction

覆盖:

open 在类中 org.apache.flink.api.common.functions.AbstractRichFunction

抛出:

Exception

close

public void close()
           throws Exception

指定者:

close 在接口中 org.apache.flink.api.common.functions.RichFunction

覆盖:

close 在类中 org.apache.flink.api.common.functions.AbstractRichFunction

抛出:

Exception

processMatch

public void processMatch(Map<String,List<IN>> match,
                         PatternProcessFunction.Context ctx,
                         org.apache.flink.util.Collector<OUT> out)
                  throws Exception

从类复制的说明: PatternProcessFunction

Generates resulting elements given a map of detected pattern events. The events are identified by their specified names.

TimeContext.timestamp() in this case returns the time of the last element that was assigned to the match, resulting in this partial match being finished.

指定者:

processMatch 在类中 PatternProcessFunction<IN,OUT>

参数:

match - map containing the found pattern. Events are identified by their names.

ctx - enables access to time features and emitting results through side outputs

out - Collector used to output the generated elements

抛出:

Exception - This method may throw exceptions. Throwing an exception will cause the operation to fail and may trigger recovery.