org.apache.flink.api.java.typeutils

类 WritableTypeInfo<T extends org.apache.hadoop.io.Writable>

java.lang.Object

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

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

类型参数:

T - The type of the class represented by this type information.

所有已实现的接口:

Serializable, org.apache.flink.api.common.typeinfo.AtomicType<T>

@Public
public class WritableTypeInfo<T extends org.apache.hadoop.io.Writable>
extends org.apache.flink.api.common.typeinfo.TypeInformation<T>
implements org.apache.flink.api.common.typeinfo.AtomicType<T>

Type information for data types that extend Hadoop's Writable interface. The Writable interface defines the serialization and deserialization routines for the data type.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
WritableTypeInfo(Class<T> typeClass)

方法概要

限定符和类型	方法和说明
boolean	canEqual(Object obj)
org.apache.flink.api.common.typeutils.TypeComparator<T>	createComparator(boolean sortOrderAscending, org.apache.flink.api.common.ExecutionConfig executionConfig)
org.apache.flink.api.common.typeutils.TypeSerializer<T>	createSerializer(org.apache.flink.api.common.ExecutionConfig executionConfig)
boolean	equals(Object obj)
int	getArity()
int	getTotalFields()
Class<T>	getTypeClass()
int	hashCode()
boolean	isBasicType()
boolean	isKeyType()
boolean	isTupleType()
String	toString()

从类继承的方法 org.apache.flink.api.common.typeinfo.TypeInformation

getGenericParameters, isSortKeyType, of, of

从类继承的方法 java.lang.Object

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

构造器详细资料

WritableTypeInfo

@PublicEvolving
public WritableTypeInfo(Class<T> typeClass)

方法详细资料

createComparator

@PublicEvolving
public org.apache.flink.api.common.typeutils.TypeComparator<T> createComparator(boolean sortOrderAscending,
                                                                                                org.apache.flink.api.common.ExecutionConfig executionConfig)

指定者:

createComparator 在接口中 org.apache.flink.api.common.typeinfo.AtomicType<T extends org.apache.hadoop.io.Writable>

isBasicType

@PublicEvolving
public boolean isBasicType()

指定者:

isBasicType 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

isTupleType

@PublicEvolving
public boolean isTupleType()

指定者:

isTupleType 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

getArity

@PublicEvolving
public int getArity()

指定者:

getArity 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

getTotalFields

@PublicEvolving
public int getTotalFields()

指定者:

getTotalFields 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

getTypeClass

@PublicEvolving
public Class<T> getTypeClass()

指定者:

getTypeClass 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

isKeyType

@PublicEvolving
public boolean isKeyType()

指定者:

isKeyType 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

createSerializer

@PublicEvolving
public org.apache.flink.api.common.typeutils.TypeSerializer<T> createSerializer(org.apache.flink.api.common.ExecutionConfig executionConfig)

指定者:

createSerializer 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

toString

public String toString()

指定者:

toString 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

hashCode

public int hashCode()

指定者:

hashCode 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

equals

public boolean equals(Object obj)

指定者:

equals 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>

canEqual

public boolean canEqual(Object obj)

指定者:

canEqual 在类中 org.apache.flink.api.common.typeinfo.TypeInformation<T extends org.apache.hadoop.io.Writable>