org.hibernate.ogm.datastore.impl

Class EmptyTupleSnapshot

java.lang.Object

org.hibernate.ogm.datastore.impl.EmptyTupleSnapshot

All Implemented Interfaces:

TupleSnapshot

public final class EmptyTupleSnapshot
extends Object
implements TupleSnapshot

Author:

Emmanuel Bernard <emmanuel@hibernate.org>

Field Summary

Fields

Modifier and Type	Field and Description
static TupleSnapshot	INSTANCE

Method Summary

Methods

Modifier and Type	Method and Description
Object	get(String column) Get the value of a column in the tuple
Set<String>	getColumnNames() Get columns names composing the tuple
boolean	isEmpty() Check if the tuple contains some values

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final TupleSnapshot INSTANCE

Method Detail

get

public Object get(String column)

Description copied from interface: TupleSnapshot

Get the value of a column in the tuple

Specified by:

get in interface TupleSnapshot

Parameters:

column - the name of the column

Returns:

the column value or null if the value is not set

isEmpty

public boolean isEmpty()

Description copied from interface: TupleSnapshot

Check if the tuple contains some values

Specified by:

isEmpty in interface TupleSnapshot

Returns:

true is there is at lease one value in the tuple, false otherwise.

getColumnNames

public Set<String> getColumnNames()

Description copied from interface: TupleSnapshot

Get columns names composing the tuple

Specified by:

getColumnNames in interface TupleSnapshot

Returns:

the columns names