RWLocalCache (Ontopia)

java.lang.Object
- net.ontopia.persistence.proxy.AbstractLocalCache
- - net.ontopia.persistence.proxy.RWLocalCache

All Implemented Interfaces:

AccessRegistrarIF, StorageCacheIF
```
public class RWLocalCache
extends AbstractLocalCache
```
INTERNAL: A transactional storage cache implementation. The cache uses the transaction to lookup objects and relies on the fact that PersistentIFs can store their own data.

Field Summary

Fields
Modifier and Type Field Description

protected ObjectStates ostates
- Fields inherited from class net.ontopia.persistence.proxy.AbstractLocalCache
  pcache, pregistrar, ticket, txn

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`exists(StorageAccessIF access, IdentityIF identity)`	INTERNAL: Can be called to verify whether the specified identity exists in the cache or in the data repository.
`Object`	`getValue(StorageAccessIF access, IdentityIF identity, int field)`	INTERNAL: A call forwarded by the transaction (TransactionIF) from persistent objects (PersistentIF) when the field value needs to be retrieved from storage.
`String`	`toString()`

Methods inherited from class net.ontopia.persistence.proxy.AbstractLocalCache
clear, close, createIdentity, createIdentity, createIdentity, evictField, evictFields, evictIdentity, getRegistrar, getTicket, isFieldLoaded, isObjectLoaded, prefetch, registerEviction, registerField, registerIdentity, releaseEviction

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - ostates
```
protected ObjectStates ostates
```
- Method Detail
  - exists
```
public boolean exists(StorageAccessIF access,
                      IdentityIF identity)
```
    Description copied from interface: StorageCacheIF
    
    INTERNAL: Can be called to verify whether the specified identity exists in the cache or in the data repository. Whether the data repository is actually asked depends on the policy of the storage cache.
    
    Specified by:
    
    exists in interface StorageCacheIF
    
    Specified by:
    
    exists in class AbstractLocalCache
  - getValue
```
public Object getValue(StorageAccessIF access,
                       IdentityIF identity,
                       int field)
```
    Description copied from interface: StorageCacheIF
    
    INTERNAL: A call forwarded by the transaction (TransactionIF) from persistent objects (PersistentIF) when the field value needs to be retrieved from storage. The field value will be returned.
    
    Specified by:
    
    getValue in interface StorageCacheIF
    
    Specified by:
    
    getValue in class AbstractLocalCache
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object