Package org.apache.commons.vfs2.operations

Interface FileOperationProvider

All Known Implementing Classes:

AbstractFileOperationProvider

public interface FileOperationProvider

FileOperationProvider is responsible for dealing with FileOperation's.

Since:

0.1

Field Summary

Fields

Modifier and Type	Field	Description
static final FileOperationProvider[]	EMPTY_ARRAY	Empty array.

Method Summary

Modifier and Type	Method	Description
void	collectOperations(Collection<Class<? extends FileOperation>> operationsList, FileObject file)	Gather available operations for the specified FileObject and put them into specified operationsList.
FileOperation	getOperation(FileObject file, Class<? extends FileOperation> operationClass)	Gets implementation for a given FileObject and FileOperation interface.

Field Details

EMPTY_ARRAY

static final FileOperationProvider[] EMPTY_ARRAY

Empty array.

Since:

2.9.0

Method Details

collectOperations

void collectOperations(Collection<Class<? extends FileOperation>> operationsList,
 FileObject file)
                throws FileSystemException

Gather available operations for the specified FileObject and put them into specified operationsList.

Parameters:

operationsList - 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.

Throws:

FileSystemException - if list of operations cannot be retrieved.

getOperation

FileOperation getOperation(FileObject file,
 Class<? extends FileOperation> operationClass)
                    throws FileSystemException

Gets implementation for a given FileObject and FileOperation interface.

Parameters:

file - the FileObject for which we need an operation.

operationClass - the Class which instance we are needed.

Returns:

the required operation instance.

Throws:

FileSystemException - if operation cannot be retrieved.