org.apache.flink.api.java.typeutils

Class TypeExtractor

java.lang.Object

org.apache.flink.api.java.typeutils.TypeExtractor

public class TypeExtractor
extends Object

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TypeExtractor()

Method Summary

Methods

Modifier and Type	Method and Description
protected <X> TypeInformation<X>	analyzePojo(Class<X> clazz, ArrayList<Type> typeHierarchy, ParameterizedType clazzTypeHint)
static <IN1,IN2,OUT> TypeInformation<OUT>	createTypeInfo(Class<?> baseClass, Class<?> clazz, int returnParamPos, TypeInformation<IN1> in1Type, TypeInformation<IN2> in2Type)
static TypeInformation<?>	createTypeInfo(Type t)
static List<Field>	getAllDeclaredFields(Class<?> clazz) recursively determine all declared fields This is required because class.getFields() is not returning fields defined in parent classes.
static <IN1,IN2,OUT> TypeInformation<OUT>	getCoGroupReturnTypes(CoGroupFunction<IN1,IN2,OUT> coGroupInterface, TypeInformation<IN1> in1Type, TypeInformation<IN2> in2Type)
static <IN1,IN2,OUT> TypeInformation<OUT>	getCrossReturnTypes(CrossFunction<IN1,IN2,OUT> crossInterface, TypeInformation<IN1> in1Type, TypeInformation<IN2> in2Type)
static <IN1,IN2,OUT> TypeInformation<OUT>	getFlatJoinReturnTypes(FlatJoinFunction<IN1,IN2,OUT> joinInterface, TypeInformation<IN1> in1Type, TypeInformation<IN2> in2Type)
static <IN,OUT> TypeInformation<OUT>	getFlatMapReturnTypes(FlatMapFunction<IN,OUT> flatMapInterface, TypeInformation<IN> inType)
static <X> TypeInformation<X>	getForClass(Class<X> clazz)
static <X> TypeInformation<X>	getForObject(X value)
static <IN,OUT> TypeInformation<OUT>	getGroupReduceReturnTypes(GroupReduceFunction<IN,OUT> groupReduceInterface, TypeInformation<IN> inType)
static <IN> TypeInformation<IN>	getInputFormatTypes(InputFormat<IN,?> inputFormatInterface)
static <IN1,IN2,OUT> TypeInformation<OUT>	getJoinReturnTypes(JoinFunction<IN1,IN2,OUT> joinInterface, TypeInformation<IN1> in1Type, TypeInformation<IN2> in2Type)
static <IN,OUT> TypeInformation<OUT>	getKeySelectorTypes(KeySelector<IN,OUT> selectorInterface, TypeInformation<IN> inType)
static <IN,OUT> TypeInformation<OUT>	getMapPartitionReturnTypes(MapPartitionFunction<IN,OUT> mapPartitionInterface, TypeInformation<IN> inType)
static <IN,OUT> TypeInformation<OUT>	getMapReturnTypes(MapFunction<IN,OUT> mapInterface, TypeInformation<IN> inType)
static Type	getParameterType(Class<?> baseClass, Class<?> clazz, int pos)
static <T> TypeInformation<T>	getPartitionerTypes(Partitioner<T> partitioner)

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeExtractor

protected TypeExtractor()

Method Detail

getMapReturnTypes

public static <IN,OUT> TypeInformation<OUT> getMapReturnTypes(MapFunction<IN,OUT> mapInterface,
                                              TypeInformation<IN> inType)

getFlatMapReturnTypes

public static <IN,OUT> TypeInformation<OUT> getFlatMapReturnTypes(FlatMapFunction<IN,OUT> flatMapInterface,
                                                  TypeInformation<IN> inType)

getMapPartitionReturnTypes

public static <IN,OUT> TypeInformation<OUT> getMapPartitionReturnTypes(MapPartitionFunction<IN,OUT> mapPartitionInterface,
                                                       TypeInformation<IN> inType)

getGroupReduceReturnTypes

public static <IN,OUT> TypeInformation<OUT> getGroupReduceReturnTypes(GroupReduceFunction<IN,OUT> groupReduceInterface,
                                                      TypeInformation<IN> inType)

getFlatJoinReturnTypes

public static <IN1,IN2,OUT> TypeInformation<OUT> getFlatJoinReturnTypes(FlatJoinFunction<IN1,IN2,OUT> joinInterface,
                                                        TypeInformation<IN1> in1Type,
                                                        TypeInformation<IN2> in2Type)

getJoinReturnTypes

public static <IN1,IN2,OUT> TypeInformation<OUT> getJoinReturnTypes(JoinFunction<IN1,IN2,OUT> joinInterface,
                                                    TypeInformation<IN1> in1Type,
                                                    TypeInformation<IN2> in2Type)

getCoGroupReturnTypes

public static <IN1,IN2,OUT> TypeInformation<OUT> getCoGroupReturnTypes(CoGroupFunction<IN1,IN2,OUT> coGroupInterface,
                                                       TypeInformation<IN1> in1Type,
                                                       TypeInformation<IN2> in2Type)

getCrossReturnTypes

public static <IN1,IN2,OUT> TypeInformation<OUT> getCrossReturnTypes(CrossFunction<IN1,IN2,OUT> crossInterface,
                                                     TypeInformation<IN1> in1Type,
                                                     TypeInformation<IN2> in2Type)

getKeySelectorTypes

public static <IN,OUT> TypeInformation<OUT> getKeySelectorTypes(KeySelector<IN,OUT> selectorInterface,
                                                TypeInformation<IN> inType)

getPartitionerTypes

public static <T> TypeInformation<T> getPartitionerTypes(Partitioner<T> partitioner)

getInputFormatTypes

public static <IN> TypeInformation<IN> getInputFormatTypes(InputFormat<IN,?> inputFormatInterface)

createTypeInfo

public static TypeInformation<?> createTypeInfo(Type t)

createTypeInfo

public static <IN1,IN2,OUT> TypeInformation<OUT> createTypeInfo(Class<?> baseClass,
                                                Class<?> clazz,
                                                int returnParamPos,
                                                TypeInformation<IN1> in1Type,
                                                TypeInformation<IN2> in2Type)

getParameterType

public static Type getParameterType(Class<?> baseClass,
                    Class<?> clazz,
                    int pos)

getForClass

public static <X> TypeInformation<X> getForClass(Class<X> clazz)

analyzePojo

protected <X> TypeInformation<X> analyzePojo(Class<X> clazz,
                                 ArrayList<Type> typeHierarchy,
                                 ParameterizedType clazzTypeHint)

getAllDeclaredFields

public static List<Field> getAllDeclaredFields(Class<?> clazz)

recursively determine all declared fields This is required because class.getFields() is not returning fields defined in parent classes.

getForObject

public static <X> TypeInformation<X> getForObject(X value)