wt.visitor
Class WalkerFactory

java.lang.Object
  wt.visitor.WalkerFactory

All Implemented Interfaces:

ApplicationContextChild

public final class WalkerFactory

extends Object

implements ApplicationContextChild

Supported API: true

Extendable: false

Field Summary

private ApplicationContext	applicationContext
static String	BREADTH_FIRST_WALKER Delegation key used to indicate breadth first Walker implementation.
private static String	CLASSNAME
static String	DEFAULT_NODE_EXPANDER Delegation key used to indicate a default NodeExpander implementation.
static String	DEFAULT_VISITOR Delegation key used to indicate a default Visitor implementation.
static String	DEFAULT_WALKER Delegation key used to indicate a default Walker implementation.
static String	DEPTH_FIRST_WALKER Delegation key used to indicate depth first Walker implementation.
private static String	RESOURCE

Fields inherited from interface wt.services.applicationcontext.ApplicationContextChild

APPLICATION_CONTEXT

Constructor Summary

WalkerFactory()

Method Summary

ApplicationContext	getApplicationContext() Gets the object for the association that plays role: applicationContext.
private Walker	newWalker(ApplicationContextServices a_services, Object a_requestor, String a_walkerType, String a_nodeExpanderType, Visitor a_visitor)
Walker	newWalker(Object a_requestor) Constructs a new instance of a Walker.
Walker	newWalker(Object a_requestor, String a_walkerType, String a_nodeExpanderType) Constructs a new instance of a Walker.
Walker	newWalker(Object a_requestor, String a_walkerType, String a_nodeExpanderType, String a_visitorType) Constructs a new instance of a Walker.
Walker	newWalker(Object a_requestor, String a_walkerType, String a_nodeExpanderType, String[] a_visitorTypes) Constructs a new instance of a Walker.
void	setApplicationContext(ApplicationContext a_ApplicationContext) Sets the object for the association that plays role: applicationContext.

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

BREADTH_FIRST_WALKER

public static final String BREADTH_FIRST_WALKER

Delegation key used to indicate breadth first Walker implementation.

Supported API: false

See Also:

Constant Field Values

DEPTH_FIRST_WALKER

public static final String DEPTH_FIRST_WALKER

Delegation key used to indicate depth first Walker implementation.

Supported API: false

See Also:

Constant Field Values

DEFAULT_WALKER

public static final String DEFAULT_WALKER

Delegation key used to indicate a default Walker implementation.

Supported API: false

See Also:

Constant Field Values

DEFAULT_NODE_EXPANDER

public static final String DEFAULT_NODE_EXPANDER

Delegation key used to indicate a default NodeExpander implementation.

Supported API: false

See Also:

Constant Field Values

DEFAULT_VISITOR

public static final String DEFAULT_VISITOR

Delegation key used to indicate a default Visitor implementation.

Supported API: false

See Also:

Constant Field Values

applicationContext

private ApplicationContext applicationContext

Constructor Detail

WalkerFactory

public WalkerFactory()

Method Detail

newWalker

public Walker newWalker(Object a_requestor)
                 throws WTPropertyVetoException

Constructs a new instance of a Walker. The NodeExpander and Visitor instances are also constructed for the Walker. The ApplicationContextService is used to instantiate objects specified in a service properties file.

Supported API: true

Parameters:

a_requestor -

Returns:

Walker

Throws:

WTPropertyVetoException

newWalker

public Walker newWalker(Object a_requestor,
                        String a_walkerType,
                        String a_nodeExpanderType)
                 throws WTPropertyVetoException

Constructs a new instance of a Walker. The NodeExpander and Visitor instances are also constructed for the Walker. The ApplicationContextService is used to instantiate objects specified in a service properties file.

Supported API: true

Parameters:

a_requestor -

a_walkerType -

a_nodeExpanderType -

Returns:

Walker

Throws:

WTPropertyVetoException

newWalker

public Walker newWalker(Object a_requestor,
                        String a_walkerType,
                        String a_nodeExpanderType,
                        String a_visitorType)
                 throws WTPropertyVetoException

Constructs a new instance of a Walker. The NodeExpander and Visitor instances are also constructed for the Walker. The ApplicationContextService is used to instantiate objects specified in a service properties file.

Supported API: true

Parameters:

a_requestor -

a_walkerType -

a_nodeExpanderType -

a_visitorType -

Returns:

Walker

Throws:

WTPropertyVetoException

newWalker

public Walker newWalker(Object a_requestor,
                        String a_walkerType,
                        String a_nodeExpanderType,
                        String[] a_visitorTypes)
                 throws WTPropertyVetoException

Constructs a new instance of a Walker. The NodeExpander and Visitor instances are also constructed for the Walker. The ApplicationContextService is used to instantiate objects specified in a service properties file.

Supported API: true

Parameters:

a_requestor -

a_walkerType -

a_nodeExpanderType -

a_visitorTypes -

Returns:

Walker

Throws:

WTPropertyVetoException

getApplicationContext

public ApplicationContext getApplicationContext()

Gets the object for the association that plays role: applicationContext.

Supported API: false

Specified by:

getApplicationContext in interface ApplicationContextChild

Returns:

ApplicationContext

setApplicationContext

public void setApplicationContext(ApplicationContext a_ApplicationContext)
                           throws WTPropertyVetoException

Sets the object for the association that plays role: applicationContext.

Supported API: false

Specified by:

setApplicationContext in interface ApplicationContextChild

Parameters:

a_ApplicationContext -

Throws:

WTPropertyVetoException

newWalker

private Walker newWalker(ApplicationContextServices a_services,
                         Object a_requestor,
                         String a_walkerType,
                         String a_nodeExpanderType,
                         Visitor a_visitor)
                  throws WTPropertyVetoException

Throws:

WTPropertyVetoException