org.apache.flink.api.java.sca

Class UdfAnalyzerUtils

java.lang.Object

org.apache.flink.api.java.sca.UdfAnalyzerUtils

@Internal
public final class UdfAnalyzerUtils
extends Object

Utility class to work with UdfAnalyzer

Method Summary

Modifier and Type	Method and Description
static TaggedValue	convertTypeInfoToTaggedValue(TaggedValue.Input input, org.apache.flink.api.common.typeinfo.TypeInformation<?> typeInfo, String flatFieldExpr, List<org.apache.flink.api.common.typeutils.CompositeType.FlatFieldDescriptor> flatFieldDesc, int[] groupedKeys)
static Object[]	findMethodNode(String internalClassName, Method method)
static Object[]	findMethodNode(String internalClassName, String name, String desc)
static boolean	hasImportantDependencies(org.objectweb.asm.tree.analysis.BasicValue bv)
static boolean	hasImportantDependencies(List<? extends org.objectweb.asm.tree.analysis.BasicValue> values, boolean skipFirst)
static boolean	isTagged(org.objectweb.asm.tree.analysis.Value value)
static TaggedValue	mergeContainers(List<TaggedValue> returnValues)
static TaggedValue	mergeInputs(List<TaggedValue> returnValues)
static TaggedValue	mergeReturnValues(List<TaggedValue> returnValues)
static TaggedValue	removeUngroupedInputs(TaggedValue value)
static void	removeUngroupedInputsFromContainer(TaggedValue value)
static TaggedValue	tagged(org.objectweb.asm.tree.analysis.Value value)

Methods inherited from class java.lang.Object

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

Method Detail

convertTypeInfoToTaggedValue

public static TaggedValue convertTypeInfoToTaggedValue(TaggedValue.Input input,
                                                       org.apache.flink.api.common.typeinfo.TypeInformation<?> typeInfo,
                                                       String flatFieldExpr,
                                                       List<org.apache.flink.api.common.typeutils.CompositeType.FlatFieldDescriptor> flatFieldDesc,
                                                       int[] groupedKeys)

findMethodNode

public static Object[] findMethodNode(String internalClassName,
                                      Method method)

Returns:

array that contains the method node and the name of the class where the method node has been found

findMethodNode

public static Object[] findMethodNode(String internalClassName,
                                      String name,
                                      String desc)

Returns:

array that contains the method node and the name of the class where the method node has been found

isTagged

public static boolean isTagged(org.objectweb.asm.tree.analysis.Value value)

tagged

public static TaggedValue tagged(org.objectweb.asm.tree.analysis.Value value)

hasImportantDependencies

public static boolean hasImportantDependencies(List<? extends org.objectweb.asm.tree.analysis.BasicValue> values,
                                               boolean skipFirst)

Returns:

returns whether a value of the list of values is or contains important dependencies (inputs or collectors) that require special analysis (e.g. to dig into a nested method). The first argument can be skipped e.g. in order to skip the "this" of non-static method arguments.

hasImportantDependencies

public static boolean hasImportantDependencies(org.objectweb.asm.tree.analysis.BasicValue bv)

Returns:

returns whether a value is or contains important dependencies (inputs or collectors) that require special analysis (e.g. to dig into a nested method)

mergeInputs

public static TaggedValue mergeInputs(List<TaggedValue> returnValues)

mergeContainers

public static TaggedValue mergeContainers(List<TaggedValue> returnValues)

mergeReturnValues

public static TaggedValue mergeReturnValues(List<TaggedValue> returnValues)

removeUngroupedInputsFromContainer

public static void removeUngroupedInputsFromContainer(TaggedValue value)

removeUngroupedInputs

public static TaggedValue removeUngroupedInputs(TaggedValue value)