public class CacheFirstCacheHandler extends AbstractRestCacheHandler
IOperationCacheHandler that can be used when offline or
for static resources as it first checks if the requested resource is
available in the cache. The operation is only executed if the requested
resource is not found in the cache.| Constructor and Description |
|---|
CacheFirstCacheHandler() |
CacheFirstCacheHandler(java.lang.String mimeType,
java.lang.String encoding) |
| Modifier and Type | Method and Description |
|---|---|
void |
afterOperationExecution(IOperation operation)
Is invoked after the operation itself is started with
IOperation#internalExecute(). |
void |
beforeOperationExecution(IOperation operation)
Is invoked before the operation itself is started with
IOperation#internalExecute(). |
void |
onOperationFinished(IOperation operation)
Notifies this listener that the watched
IOperation finished. |
boolean |
skipOperationExecution(IOperation operation) |
getCacheManagersetCacheManageronOperationSuccessfulonOperationFailedequals, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitonOperationFailedpublic CacheFirstCacheHandler()
public CacheFirstCacheHandler(java.lang.String mimeType,
java.lang.String encoding)
public void beforeOperationExecution(IOperation operation)
IOperationCacheHandlerIOperation#internalExecute(). Can be used to read some data from
the cache and set it into the operation.beforeOperationExecution in interface IOperationCacheHandlerbeforeOperationExecution in class NoCacheHandlerpublic void afterOperationExecution(IOperation operation)
IOperationCacheHandlerIOperation#internalExecute(). Can be used to read data from the
operation and write it into the cache.afterOperationExecution in interface IOperationCacheHandlerafterOperationExecution in class AbstractRestCacheHandlerpublic boolean skipOperationExecution(IOperation operation)
skipOperationExecution in interface IOperationCacheHandlerskipOperationExecution in class NoCacheHandlerIOperation should be
skipped, e.g. if the result is offline and the operation will
fail anyway (with a costly timeout).public void onOperationFinished(IOperation operation)
IOperationDelegateIOperation finished. IOperation.getResultCode() to validate the success of the
operation. E.g. for a remote operation:
switch (operation.getResultCode()) {
case HttpConnection.HTTP_OK:
break;
case HttpConnection.HTTP_FORBIDDEN:
break;
}
onOperationFinished in interface IOperationDelegateonOperationFinished in class AbstractRestCacheHandleroperation - The watched IOperation.