# Interface: com.pnfsoftware.jeb.core.units.IQuickStateObject

Quick state objects represent the state of a unit. Their primary purpose is to server as backup if JDB2 reloading fails, for any reason \(corrupted database, compatibility issue, etc.\). 

 Implementations of this interface must be serializable. Implementations must be simple; it is recommended to use simple types such as Strings or primitives, as well as basic Java Collections classes, and avoid referencing complex objects from the project graph. 

 Quick state objects are produced \(optionally\) by units.

## Method: isTargetUnit
- parameter: `unit`, type: `com.pnfsoftware.jeb.core.units.IUnit`
- return type: `boolean`

Description: Determine if a unit is the target unit of this object, ie, if its state can be \(partially\) restored using this object.
parameter: unit: a candidate unit. Note that this unit may be unprocessed\!
return: success indicator

## Method: reload
- parameter: `unit`, type: `com.pnfsoftware.jeb.core.units.IUnit`
- return type: `boolean`

Description: Reload \(restore\) the state of a unit using this object. Before calling this method, [#isTargetUnit(IUnit)](#isTargetUnit(IUnit)) should have been called and returned true.
parameter: unit: the target unit
return: success indicator