org.apache.flink.table.runtime.util

Class EqualityAndHashcodeProvider

java.lang.Object

org.apache.flink.table.runtime.util.EqualityAndHashcodeProvider

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable

@Internal
public class EqualityAndHashcodeProvider
extends Object
implements Closeable, Serializable

This class is used for scalar function, in that it is used for sharing the initialization context between scalar functions that need code generated hashcode and equals method.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
EqualityAndHashcodeProvider(org.apache.flink.table.functions.SpecializedFunction.SpecializedContext context, org.apache.flink.table.types.DataType dataType)

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	equals(Object o1, Object o2)
int	hashCode(Object o)
void	open(org.apache.flink.table.functions.FunctionContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

EqualityAndHashcodeProvider

public EqualityAndHashcodeProvider(org.apache.flink.table.functions.SpecializedFunction.SpecializedContext context,
                                   org.apache.flink.table.types.DataType dataType)

Method Detail

open

public void open(org.apache.flink.table.functions.FunctionContext context)
          throws Exception

Throws:

Exception

equals

public boolean equals(Object o1,
                      Object o2)

hashCode

public int hashCode(Object o)

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException