ValueHolderInterface (EclipseLink Core 4.0.2 API)

All Superinterfaces:

Cloneable

All Known Subinterfaces:

WeavedAttributeValueHolderInterface<T>

All Known Implementing Classes:

BackupValueHolder, BatchValueHolder, CacheBasedValueHolder, DatabaseValueHolder, EISOneToManyQueryBasedValueHolder, ProtectedValueHolder, QueryBasedValueHolder, RemoteValueHolder, TransformerBasedValueHolder, UnitOfWorkQueryValueHolder, UnitOfWorkTransformerValueHolder, UnitOfWorkValueHolder, 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 boolean shouldToStringInstantiate
Can be used to have transparent indirection toString instantiate the objects.

Method Summary

All Methods Instance Methods Abstract Methods
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 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
```
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.