public abstract class AbstractFileOperationProvider extends Object implements FileOperationProvider
| Constructor and Description |
|---|
AbstractFileOperationProvider() |
| Modifier and Type | Method and Description |
|---|---|
protected void |
addOperation(Class<? extends FileOperation> operationClass)
Add new FileOperation to list of known operations.
|
void |
collectOperations(Collection<Class<? extends FileOperation>> operationsList,
FileObject file)
Gather available operations for the specified FileObject and put them into
specified operationsList.
|
protected abstract void |
doCollectOperations(Collection<Class<? extends FileOperation>> availableOperations,
Collection<Class<? extends FileOperation>> resultList,
FileObject file)
Gather available operations for the specified FileObject and put them into
specified operationsList.
|
FileOperation |
getOperation(FileObject file,
Class<? extends FileOperation> operationClass)
Get implementation for a given FileObject and FileOperation interface.
|
protected abstract FileOperation |
instantiateOperation(FileObject file,
Class<? extends FileOperation> operationClass)
Get operation instance for specified FileOperation subclass.
|
protected Class<? extends FileOperation> |
lookupOperation(Class<? extends FileOperation> operationClass)
Find class implementing a specific operation interface.
|
public final void collectOperations(Collection<Class<? extends FileOperation>> operationsList, FileObject file) throws FileSystemException
collectOperations in interface FileOperationProvideroperationsList - the list of available operations for the specified FileObject.
The operationList contains classes of available operations, e.g.
Class objects.file - the FileObject for which we want to get the list of available
operations.FileSystemException - if list of operations cannot be retrieved.protected abstract void doCollectOperations(Collection<Class<? extends FileOperation>> availableOperations, Collection<Class<? extends FileOperation>> resultList, FileObject file) throws FileSystemException
availableOperations - the list of available operations for the specified FileObject.resultList - List to be filled with applicable operations.file - the FileObject for which we want to get the list of available
operations.FileSystemException - if list of operations cannot be retrieved.collectOperations(Collection operationsList, FileObject file)public final FileOperation getOperation(FileObject file, Class<? extends FileOperation> operationClass) throws FileSystemException
FileOperationProvidergetOperation in interface FileOperationProviderfile - the FileObject for which we need a operation.operationClass - the Class which instance we are needed.FileSystemException - if operation cannot be retrieved.protected abstract FileOperation instantiateOperation(FileObject file, Class<? extends FileOperation> operationClass) throws FileSystemException
file - the file this operation should act on.operationClass - the class of an file operation interface to instantiate.FileSystemException - if operation cannot be instantiated.protected final Class<? extends FileOperation> lookupOperation(Class<? extends FileOperation> operationClass) throws FileSystemException
operationClass - the interface which is requested.FileSystemException - if operationClass is not a known FileOperation interface.protected final void addOperation(Class<? extends FileOperation> operationClass) throws FileSystemException
operationClass - a class implementing FileOperation.FileSystemException - if instances of the class cannot be assigned to FileOperation.Copyright © 2002–2016 The Apache Software Foundation. All rights reserved.