org.apache.flink.examples.java.relational

Class WebLogAnalysis.FilterByRank

java.lang.Object

org.apache.flink.examples.java.relational.WebLogAnalysis.FilterByRank

All Implemented Interfaces:

Serializable, FilterFunction<Tuple3<Integer,String,Integer>>, Function

Enclosing class:

WebLogAnalysis

public static class WebLogAnalysis.FilterByRank
extends Object
implements FilterFunction<Tuple3<Integer,String,Integer>>

MapFunction that filters for records where the rank exceeds a certain threshold.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FilterByRank()

Method Summary

Modifier and Type	Method and Description
boolean	filter(Tuple3<Integer,String,Integer> value) Filters for records of the rank relation where the rank is greater than the given threshold.

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterByRank

public FilterByRank()

Method Detail

filter

public boolean filter(Tuple3<Integer,String,Integer> value)
               throws Exception

Filters for records of the rank relation where the rank is greater than the given threshold.

Output Format: 0: RANK 1: URL 2: AVG_DURATION

Specified by:

filter in interface FilterFunction<Tuple3<Integer,String,Integer>>

Parameters:

value - The value to be filtered.

Returns:

True for values that should be retained, false for values to be filtered out.

Throws:

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