DepositBox (Castor JavaDoc)

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ObjectLock
```
public interface DepositBox
```
DepositBox is an interface for ClassMolder to access the dirty checking cache of an object.
Checking for accessMode will be done to each access of the DepositBox. Only if a transaction has write access may setObject() or IllegalArgumentException will be thrown.
Only if a transaction with read or write access may call getObject(). Multiple transactions may own read access of the same DespositBox at the same time. Only one transaction may own write access at any given time.
Every time setObject() is called, the internal timestamp will be updated.

Author:

Thomas Yip

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.Object[]`	`getObject(TransactionContext tx)`	Get the object from the DespositBox, only the transaction have the read or write lock can get it.
`OID`	`getOID()`	Get the object's OID.
`long`	`getVersion()`
`void`	`setObject(TransactionContext tx, java.lang.Object[] object, long version)`	Set an object into the DespositBox, only a transaction has the write lock may call it method or IllegalArgumentException will be thrown.
`void`	`setVersion(long version)`	Sets the new version of this object.

- Method Detail
  - getOID
```
OID getOID()
```
    Get the object's OID.
    
    Returns:
    
    the object's OID.
  - setObject
```
void setObject(TransactionContext tx,
               java.lang.Object[] object,
               long version)
```
    Set an object into the DespositBox, only a transaction has the write lock may call it method or IllegalArgumentException will be thrown.
    
    Parameters:
    
    tx - the transaction in action
    
    object - to be store into deposit box
    
    version - of the object to be stored
  - getObject
```
java.lang.Object[] getObject(TransactionContext tx)
```
    Get the object from the DespositBox, only the transaction have the read or write lock can get it.
    
    Parameters:
    
    tx - the transaction in action
    
    Returns:
    
    An object instance.
  - getVersion
```
long getVersion()
```
    Returns:
    
    the version (a timestamp) of the last setObject(object) call.
  - setVersion
```
void setVersion(long version)
```
    Sets the new version of this object.
    
    Parameters:
    
    version - a timestamp.

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