org.apache.flink.api.java.typeutils

Class PojoTypeInfo<T>

java.lang.Object

org.apache.flink.api.common.typeinfo.TypeInformation<T>

org.apache.flink.api.common.typeutils.CompositeType<T>

org.apache.flink.api.java.typeutils.PojoTypeInfo<T>

Direct Known Subclasses:

AvroTypeInfo

public class PojoTypeInfo<T>
extends CompositeType<T>

TypeInformation for arbitrary (they have to be java-beans-style) java objects (what we call POJO).

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.api.common.typeutils.CompositeType

CompositeType.FlatFieldDescriptor

Constructor Summary

Constructors

Constructor and Description
PojoTypeInfo(Class<T> typeClass, List<PojoField> fields)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addCompareField(int fieldId, TypeComparator<?> comparator)
TypeSerializer<T>	createSerializer()
boolean	equals(Object obj)
int	getArity()
void	getKey(String fieldExpression, int offset, List<CompositeType.FlatFieldDescriptor> result)
protected TypeComparator<T>	getNewComparator()
PojoField	getPojoFieldAt(int pos)
int	getTotalFields()
<X> TypeInformation<X>	getTypeAt(int pos)
Class<T>	getTypeClass()
int	hashCode()
protected void	initializeNewComparator(int keyCount)
boolean	isBasicType()
boolean	isKeyType()
boolean	isTupleType()
String	toString()

Methods inherited from class org.apache.flink.api.common.typeutils.CompositeType

createComparator

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PojoTypeInfo

public PojoTypeInfo(Class<T> typeClass,
            List<PojoField> fields)

Method Detail

isBasicType

public boolean isBasicType()

Specified by:

isBasicType in class TypeInformation<T>

isTupleType

public boolean isTupleType()

Specified by:

isTupleType in class TypeInformation<T>

getArity

public int getArity()

Specified by:

getArity in class TypeInformation<T>

getTotalFields

public int getTotalFields()

Specified by:

getTotalFields in class TypeInformation<T>

getTypeClass

public Class<T> getTypeClass()

Specified by:

getTypeClass in class TypeInformation<T>

isKeyType

public boolean isKeyType()

Specified by:

isKeyType in class TypeInformation<T>

getKey

public void getKey(String fieldExpression,
          int offset,
          List<CompositeType.FlatFieldDescriptor> result)

Specified by:

getKey in class CompositeType<T>

getTypeAt

public <X> TypeInformation<X> getTypeAt(int pos)

Specified by:

getTypeAt in class CompositeType<T>

getPojoFieldAt

public PojoField getPojoFieldAt(int pos)

initializeNewComparator

protected void initializeNewComparator(int keyCount)

Specified by:

initializeNewComparator in class CompositeType<T>

addCompareField

protected void addCompareField(int fieldId,
                   TypeComparator<?> comparator)

Specified by:

addCompareField in class CompositeType<T>

getNewComparator

protected TypeComparator<T> getNewComparator()

Specified by:

getNewComparator in class CompositeType<T>

createSerializer

public TypeSerializer<T> createSerializer()

Specified by:

createSerializer in class TypeInformation<T>

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object