org.appng.api.support

Class ElementHelper

java.lang.Object

org.appng.api.support.ElementHelper

public class ElementHelper
extends Object

Utility class offering methods for proper initialization of Linkpanels, Links, Navigation/ NavigationItems, BeanOptions, Params etc.
Also wraps an Environment and an ExpressionEvaluator to evaluate expressions.

Author:

Matthias Müller

Field Summary

Fields

Modifier and Type	Field and Description
static String	INTERNAL_ERROR

Constructor Summary

Constructors

Constructor and Description
ElementHelper(Environment environment, Site site, Application application, ExpressionEvaluator expressionEvaluator)
ElementHelper(Site site, Application application)

Method Summary

Modifier and Type	Method and Description
static Messages	addMessages(Environment environment, Messages messages) Returns the messages for the current session.
boolean	conditionMatches(Condition condition)
static boolean	conditionMatches(ExpressionEvaluator expressionEvaluator, Condition condition)
Messages	getMessages() Returns the messages for the current session.
Messages	getMessagesInternal(Environment other)
String	getOutputPrefix()
String	getOutputPrefix(Environment env) Deprecated. use getOutputPrefix(), since an Environment is wrapped here
Class<?>[]	getValidationGroups(MetaData metaData, Object bindObject)
boolean	hasMessages()
boolean	hasMessages(Environment environment) Deprecated. use hasMessages(), since an Environment is wrapped here
ExpressionEvaluator	initExpressionEvaluator(ExpressionEvaluator other)
void	initNavigation(ApplicationRequest applicationRequest, Path pathInfo, PageConfig pageConfig)
boolean	isMessageParam(Object o)
void	processDataContainer(Request applicationRequest, DataContainer container, String callerName)
Messages	removeMessages() Returns the messages for the current session.
Messages	removeMessages(Environment environment)

Methods inherited from class java.lang.Object

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

Field Detail

INTERNAL_ERROR

public static final String INTERNAL_ERROR

See Also:

Constant Field Values

Constructor Detail

ElementHelper

public ElementHelper(Site site,
                     Application application)

ElementHelper

public ElementHelper(Environment environment,
                     Site site,
                     Application application,
                     ExpressionEvaluator expressionEvaluator)

Method Detail

initExpressionEvaluator

public ExpressionEvaluator initExpressionEvaluator(ExpressionEvaluator other)

initNavigation

public void initNavigation(ApplicationRequest applicationRequest,
                           Path pathInfo,
                           PageConfig pageConfig)

addMessages

public static Messages addMessages(Environment environment,
                                   Messages messages)

Returns the messages for the current session.

Parameters:

environment - the current Environment

Returns:

the messages for the current session, if any

removeMessages

public Messages removeMessages()

Returns the messages for the current session.

Returns:

the messages for the current session, if any

removeMessages

public Messages removeMessages(Environment environment)

hasMessages

@Deprecated
public boolean hasMessages(Environment environment)

Deprecated. use hasMessages(), since an Environment is wrapped here

getMessages

public Messages getMessages()

Returns the messages for the current session.

Returns:

the messages for the current session, if any

getMessagesInternal

public Messages getMessagesInternal(Environment other)

hasMessages

public boolean hasMessages()

conditionMatches

public boolean conditionMatches(Condition condition)

conditionMatches

public static boolean conditionMatches(ExpressionEvaluator expressionEvaluator,
                                       Condition condition)

processDataContainer

public void processDataContainer(Request applicationRequest,
                                 DataContainer container,
                                 String callerName)
                          throws ClassNotFoundException,
                                 ProcessingException

Throws:

ClassNotFoundException

ProcessingException

isMessageParam

public boolean isMessageParam(Object o)

getValidationGroups

public Class<?>[] getValidationGroups(MetaData metaData,
                                      Object bindObject)

getOutputPrefix

@Deprecated
public String getOutputPrefix(Environment env)

Deprecated. use getOutputPrefix(), since an Environment is wrapped here

getOutputPrefix

public String getOutputPrefix()