org.eclipse.persistence.indirection

Interface ValueHolderInterface

All Superinterfaces:

java.lang.Cloneable

All Known Subinterfaces:

WeavedAttributeValueHolderInterface

All Known Implementing Classes:

ValueHolder

public interface ValueHolderInterface
extends java.lang.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 and Description
static boolean	shouldToStringInstantiate Can be used to have transparent indirection toString instantiate the objects.

Method Summary

Methods

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

Field Detail

shouldToStringInstantiate

static final boolean shouldToStringInstantiate

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

See Also:

Constant Field Values

Method Detail

clone

java.lang.Object clone()

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

getValue

java.lang.Object 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(java.lang.Object value)

PUBLIC: Set the value.