org.apache.flink.api.java

Class Utils

java.lang.Object

org.apache.flink.api.java.Utils

public final class Utils
extends Object

Utility class that contains helper methods to work with Java APIs.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Utils.CollectHelper<T>
static class	Utils.CountHelper<T>

Field Summary

Fields

Modifier and Type	Field and Description
static Random	RNG

Method Summary

Methods

Modifier and Type	Method and Description
static String	getCallLocationName()
static String	getCallLocationName(int depth)
static void	getContainedGenericTypes(CompositeType typeInfo, List<GenericTypeInfo<?>> target) Returns all GenericTypeInfos contained in a composite type.
static <T> String	getSerializerTree(TypeInformation<T> ti) Debugging utility to understand the hierarchy of serializers created by the Java API.

Methods inherited from class java.lang.Object

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

Field Detail

RNG

public static final Random RNG

Method Detail

getCallLocationName

public static String getCallLocationName()

getCallLocationName

public static String getCallLocationName(int depth)

getContainedGenericTypes

public static void getContainedGenericTypes(CompositeType typeInfo,
                            List<GenericTypeInfo<?>> target)

Returns all GenericTypeInfos contained in a composite type.

Parameters:

typeInfo -

getSerializerTree

public static <T> String getSerializerTree(TypeInformation<T> ti)

Debugging utility to understand the hierarchy of serializers created by the Java API. Tested in GroupReduceITCase.testGroupByGenericType()