org.deegree.filter.function
Class FunctionManager

java.lang.Object
  org.deegree.commons.config.AbstractBasicResourceManager
      org.deegree.filter.function.FunctionManager

All Implemented Interfaces:

ResourceManager

public class FunctionManager
extends AbstractBasicResourceManager

Entry point for retrieving FunctionProvider instances that are registered via Java SPI.

Version:

$Revision: 31413 $, $Date: 2011-08-02 14:29:56 +0200 (Tue, 02 Aug 2011) $

Author:

Markus Schneider, last edited by: $Author: aschmitz $

Field Summary

Fields inherited from class org.deegree.commons.config.AbstractBasicResourceManager

dir, idToState, workspace

Constructor Summary

FunctionManager()

Method Summary

ResourceState	activate(String id) Activates the resource with the given identifier.
ResourceState	deactivate(String id) Deactivates the resource with the given identifier.
Class<? extends ResourceManager>[]	getDependencies()
static FunctionProvider	getFunctionProvider(String name) Returns the FunctionProvider for the given name.
static Map<String,FunctionProvider>	getFunctionProviders() Returns all available FunctionProviders.
ResourceManagerMetadata<?>	getMetadata()
protected ResourceProvider	getProvider(File file)
protected void	remove(String id)
void	shutdown() Is called upon workspace shutdown.
void	startup(DeegreeWorkspace ws) Is called upon workspace startup.

Methods inherited from class org.deegree.commons.config.AbstractBasicResourceManager

createResource, deleteResource, getState, getStates, init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FunctionManager

public FunctionManager()

Method Detail

getFunctionProviders

public static Map<String,FunctionProvider> getFunctionProviders()

Returns all available FunctionProviders. Multiple functions with the same case ignored name are not allowed.

Returns:

all available functions, keys: name, value: FunctionProvider

getFunctionProvider

public static FunctionProvider getFunctionProvider(String name)

Returns the FunctionProvider for the given name.

Parameters:

name - name of the function, must not be null

Returns:

custom function instance, or null if there is no function with this name

getDependencies

public Class<? extends ResourceManager>[] getDependencies()

Returns:

an empty array if there are no dependencies

getMetadata

public ResourceManagerMetadata<?> getMetadata()

Returns:

a metadata object, may be null

startup

public void startup(DeegreeWorkspace ws)
             throws ResourceInitException

Description copied from interface: ResourceManager

Is called upon workspace startup.

Throws:

ResourceInitException

shutdown

public void shutdown()

Description copied from interface: ResourceManager

Is called upon workspace shutdown.

activate

public ResourceState activate(String id)

Description copied from interface: ResourceManager

Activates the resource with the given identifier.

Parameters:

id - resource identifier, must not be null

Returns:

resource state after activation (may be unsuccessful), but never null

deactivate

public ResourceState deactivate(String id)

Description copied from interface: ResourceManager

Deactivates the resource with the given identifier.

Parameters:

id - resource identifier, must not be null

Returns:

resource state after deactivation (may be unsuccessful), but never null

getProvider

protected ResourceProvider getProvider(File file)

Specified by:

getProvider in class AbstractBasicResourceManager

remove

protected void remove(String id)

Specified by:

remove in class AbstractBasicResourceManager