Package de.unibamberg.minf.gtf.commands

Class BaseCommandDispatcher

java.lang.Object

de.unibamberg.minf.gtf.commands.BaseCommands

de.unibamberg.minf.gtf.commands.BaseCommandDispatcher

All Implemented Interfaces:

CommandDispatcher, Commands

public abstract class BaseCommandDispatcher
extends BaseCommands
implements CommandDispatcher

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	BaseCommandDispatcher.DispatcherWithLocalCommand

Field Summary

Fields inherited from class de.unibamberg.minf.gtf.commands.BaseCommands

SIMPLE_TYPES

Constructor Summary

Constructors

Constructor	Description
BaseCommandDispatcher()

Method Summary

Modifier and Type	Method	Description
<T> SyntaxTreeNode	convert(T c)	Override this method in any dispatcher that supports itself conversion of a type; throws DataTransformationException if called with unsupported type
final Object	execute(String command, Object[] args, ExecutionContext exectionContext)
protected Object	executeDirect(String command, Object[] args, ExecutionContext exectionContext)	This method needs to be overridden in any dispatcher that handles commands itself, not only by further dispatching the command to subordinate dispatchers
protected BaseCommandDispatcher.DispatcherWithLocalCommand	findExecutingDispatcher(String command)	This methods needs to be overridden in any dispatcher that has subordinate dispatchers that handle commands
final List<Boolean>	supports(String command, Object[] args, ExecutionContext exectionContext)
boolean	supportsConversion(Class<?> c)	Override this and enable for classes that are supported by this (not subordinate) dispatcher
List<Boolean>	supportsDirect(String command, Object[] args, ExecutionContext exectionContext)	This is a convenience implementation that acknowledges support of any provided simple or tree parameter array Override and customize in real implementations of CommandDispatcher

Methods inherited from class de.unibamberg.minf.gtf.commands.BaseCommands

convert, ensureCollection, ensureCollection, ensureCollectionSize, ensureCollectionSize, ensureCollectionSizeAtLeast, flattenArgs, getAsSimpleValue, getAsSimpleValue, getConversionSupportingDispatcher, getEnclosedType, getSubordinateDispatchers, isCollectionType, isNullValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.unibamberg.minf.gtf.commands.Commands

convert, ensureCollection, ensureCollection, ensureCollectionSize, ensureCollectionSize, ensureCollectionSizeAtLeast, flattenArgs, getAsSimpleValue, getAsSimpleValue, getConversionSupportingDispatcher, getEnclosedType, getSubordinateDispatchers, isCollectionType, isNullValue

Constructor Details

BaseCommandDispatcher

public BaseCommandDispatcher()

Method Details

execute

public final Object execute(String command,
 Object[] args,
 ExecutionContext exectionContext)
                     throws CommandExecutionException

Specified by:

execute in interface CommandDispatcher

Throws:

CommandExecutionException

supports

public final List<Boolean> supports(String command,
 Object[] args,
 ExecutionContext exectionContext)
                             throws CommandExecutionException

Specified by:

supports in interface CommandDispatcher

Throws:

CommandExecutionException

supportsDirect

public List<Boolean> supportsDirect(String command,
 Object[] args,
 ExecutionContext exectionContext)
                             throws CommandExecutionException

This is a convenience implementation that acknowledges support of any provided simple or tree parameter array Override and customize in real implementations of CommandDispatcher

Specified by:

supportsDirect in interface CommandDispatcher

Throws:

CommandExecutionException

executeDirect

protected Object executeDirect(String command,
 Object[] args,
 ExecutionContext exectionContext)
                        throws CommandExecutionException

This method needs to be overridden in any dispatcher that handles commands itself, not only by further dispatching the command to subordinate dispatchers

Parameters:

command - Command to execute

args - Execution arguments

Returns:

Execution result

Throws:

CommandExecutionException

findExecutingDispatcher

protected BaseCommandDispatcher.DispatcherWithLocalCommand findExecutingDispatcher(String command)

This methods needs to be overridden in any dispatcher that has subordinate dispatchers that handle commands

Parameters:

command - Command to dispatch

Returns:

convert

public <T> SyntaxTreeNode convert(T c)
                           throws DataTransformationException

Description copied from class: BaseCommands

Override this method in any dispatcher that supports itself conversion of a type; throws DataTransformationException if called with unsupported type

Specified by:

convert in interface Commands

Overrides:

convert in class BaseCommands

Parameters:

c - Object to convert

Returns:

ConvertedSyntaxTreeNode

Throws:

DataTransformationException

supportsConversion

public boolean supportsConversion(Class<?> c)

Description copied from class: BaseCommands

Override this and enable for classes that are supported by this (not subordinate) dispatcher

Specified by:

supportsConversion in interface Commands

Overrides:

supportsConversion in class BaseCommands

Parameters:

c - possible class types

Returns:

true if type conversion supported