alma.ACS.jbaci

Class MemoryDataAccess

java.lang.Object

alma.ACS.jbaci.DataAccessSupport

alma.ACS.jbaci.MemoryDataAccess

All Implemented Interfaces:

DataAccess

public class MemoryDataAccess
extends DataAccessSupport

Memory data access (what you set is what you get) implementation.

Author:

Matej Sekoranja

Nested Class Summary

Nested classes/interfaces inherited from interface alma.ACS.jbaci.DataAccess

DataAccess.OnChangeNotSupportedException, DataAccess.ValueChangeListener

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.Object	value Value.

Fields inherited from class alma.ACS.jbaci.DataAccessSupport

listeners

Constructor Summary

Constructors

Constructor and Description
MemoryDataAccess()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	get(CompletionHolder completionHolder) Retrieve value or throw AcsJExcption in case of failure.
boolean	initializeValue() This requires value to be initialized to non-null value.
void	set(java.lang.Object value, CompletionHolder completionHolder) Set value or throw AcsJExcption in case of failure.

Methods inherited from class alma.ACS.jbaci.DataAccessSupport

addValueChangeListener, notify, removeValueChangeListener

Methods inherited from class java.lang.Object

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

Field Detail

value

protected java.lang.Object value

Value.

Constructor Detail

MemoryDataAccess

public MemoryDataAccess()

Method Detail

initializeValue

public boolean initializeValue()

This requires value to be initialized to non-null value.

Returns:

flag indicating if property should initialize value (to default value) when initializing.

See Also:

alma.ACS.DataAccess#initializeValue()

get

public java.lang.Object get(CompletionHolder completionHolder)

Description copied from interface: DataAccess

Retrieve value or throw AcsJExcption in case of failure.

Parameters:

completionHolder - completion holder. If completionHolder.value is left to null (by this method), caller is responsible to create a no-error completion with current timestamp later. Use alma.ACS.jbaci.CompletionUtil class to generate no-error completion.

Returns:

read value, non-null.

See Also:

alma.ACS.DataAccess#get(alma.ACSErr.CompletionHolder)

set

public void set(java.lang.Object value,
                CompletionHolder completionHolder)

Description copied from interface: DataAccess

Set value or throw AcsJExcption in case of failure.

Parameters:

value - value to be set, non-null.

See Also:

alma.ACS.DataAccess#set(Object, alma.ACSErr.CompletionHolder)