Package org.eclipse.persistence.indirection

Interface ValueHolderInterface<T>

All Superinterfaces:

Cloneable

All Known Subinterfaces:

WeavedAttributeValueHolderInterface<T>

All Known Implementing Classes:

ValueHolder

public interface ValueHolderInterface<T>
extends Cloneable

Purpose: Interface to allow lazy loading of an object's relationships from the database.

See Also:

• ValueHolder
• DatabaseValueHolder

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	shouldToStringInstantiate	Can be used to have transparent indirection toString instantiate the objects.

Method Summary

Modifier and Type	Method	Description
Object	clone()	PUBLIC: Copy the value holder (but not its' reference, shallow).
T	getValue()	PUBLIC: Return the value.
boolean	isInstantiated()	PUBLIC: Return whether the contents have been read from the database.
void	setValue(T value)	PUBLIC: Set the value.

Field Details

shouldToStringInstantiate

static final boolean shouldToStringInstantiate

Can be used to have transparent indirection toString instantiate the objects.

See Also:

• Constant Field Values

Method Details

clone

Object clone()

PUBLIC: Copy the value holder (but not its' reference, shallow).

getValue

T getValue()

PUBLIC: Return the value.

isInstantiated

boolean isInstantiated()

PUBLIC: Return whether the contents have been read from the database. This is used periodically by the indirection policy to determine whether to trigger the database read.

setValue

void setValue(T value)

PUBLIC: Set the value.