org.apache.flink.streaming.util.typeutils

Class FieldAccessorFactory

java.lang.Object

org.apache.flink.streaming.util.typeutils.FieldAccessorFactory

All Implemented Interfaces:

Serializable

@Internal
public class FieldAccessorFactory
extends Object
implements Serializable

Static factories for the FieldAccessor utilities.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FieldAccessorFactory()

Method Summary

Modifier and Type	Method and Description
static <T,F> FieldAccessor<T,F>	getAccessor(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo, int pos, org.apache.flink.api.common.ExecutionConfig config) Creates a FieldAccessor for the given field position, which can be used to get and set the specified field on instances of this type.
static <T,F> FieldAccessor<T,F>	getAccessor(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo, String field, org.apache.flink.api.common.ExecutionConfig config) Creates a FieldAccessor for the field that is given by a field expression, which can be used to get and set the specified field on instances of this type.

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldAccessorFactory

public FieldAccessorFactory()

Method Detail

getAccessor

@Internal
public static <T,F> FieldAccessor<T,F> getAccessor(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo,
                                                             int pos,
                                                             org.apache.flink.api.common.ExecutionConfig config)

Creates a FieldAccessor for the given field position, which can be used to get and set the specified field on instances of this type.

Type Parameters:

F - The type of the field to access

Parameters:

pos - The field position (zero-based)

config - Configuration object

Returns:

The created FieldAccessor

getAccessor

@Internal
public static <T,F> FieldAccessor<T,F> getAccessor(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo,
                                                             String field,
                                                             org.apache.flink.api.common.ExecutionConfig config)

Creates a FieldAccessor for the field that is given by a field expression, which can be used to get and set the specified field on instances of this type.

Type Parameters:

F - The type of the field to access

Parameters:

field - The field expression

config - Configuration object

Returns:

The created FieldAccessor