Package org.eclnt.jsfserver.util

Class ExpressionManagerV

java.lang.Object

org.eclnt.jsfserver.util.ExpressionManagerV

public class ExpressionManagerV
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	JSF12

Constructor Summary

Constructors

Constructor	Description
ExpressionManagerV()

Method Summary

Modifier and Type	Method	Description
static String[]	buildTokens(String vbString)	The string vbString is transferred into its tokens.
static boolean	checkIfObjectIsAnExpression(Object object)
static Object	createExpression(javax.faces.application.Application app, String vbString)
static Object	getExpressionFromComponentAttribute(javax.faces.component.UIComponent component, String attributeName)
static String	getExpressionString(Object expression)
static Class	getType(javax.faces.context.FacesContext context, Object expression)
static Object	getValue(javax.faces.context.FacesContext context, Object expression)
static Object	getValueForExpressionString(javax.faces.context.FacesContext context, String expressionString)
static Object	getValueForExpressionString(javax.faces.context.FacesContext context, String expressionString, boolean withError)
static void	setExpressionAsComponentAttribute(javax.faces.component.UIComponent component, String attributeName, Object expression)
static void	setFlagSetMayFail(Object expression, boolean flagSetMayFail)	By default a set-operation that fails with an expression causes some Error that is thrown.
static void	setValue(javax.faces.context.FacesContext context, Object expression, Object value)	Set value of an expression.
static void	setValue(javax.faces.context.FacesContext context, Object expression, Object value, boolean clearStack)	Internal usage.
static void	setValueInExpressionString(javax.faces.context.FacesContext context, String expressionString, Object value)

Methods inherited from class java.lang.Object

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

Field Details

JSF12

public static boolean JSF12

Constructor Details

ExpressionManagerV

public ExpressionManagerV()

Method Details

setValueInExpressionString

public static void setValueInExpressionString(javax.faces.context.FacesContext context,
 String expressionString,
 Object value)

getValueForExpressionString

public static Object getValueForExpressionString(javax.faces.context.FacesContext context,
 String expressionString,
 boolean withError)
                                          throws javax.el.PropertyNotFoundException

Parameters:

withError - If an expression cannot be resolved (e.g. the expression is pointing to a property which does not exist) then you may explicitly decide if "null" is returned (withError set to "false") or if a PropertyNotFound-exception is thrown (withError set to "true").

Throws:

javax.el.PropertyNotFoundException

getValueForExpressionString

public static Object getValueForExpressionString(javax.faces.context.FacesContext context,
 String expressionString)

setFlagSetMayFail

public static void setFlagSetMayFail(Object expression,
 boolean flagSetMayFail)

By default a set-operation that fails with an expression causes some Error that is thrown. You can explicitly mark an expression so that it knows that set-operations may fail - so no error will be thrown later on.

setValue

public static void setValue(javax.faces.context.FacesContext context,
 Object expression,
 Object value)

Set value of an expression.

setValue

public static void setValue(javax.faces.context.FacesContext context,
 Object expression,
 Object value,
 boolean clearStack)

Internal usage.

getType

public static Class getType(javax.faces.context.FacesContext context,
 Object expression)

Returns:

May return null if the type cannot be resolved.

getValue

public static Object getValue(javax.faces.context.FacesContext context,
 Object expression)

getExpressionString

public static String getExpressionString(Object expression)

getExpressionFromComponentAttribute

public static Object getExpressionFromComponentAttribute(javax.faces.component.UIComponent component,
 String attributeName)

setExpressionAsComponentAttribute

public static void setExpressionAsComponentAttribute(javax.faces.component.UIComponent component,
 String attributeName,
 Object expression)

createExpression

public static Object createExpression(javax.faces.application.Application app,
 String vbString)

checkIfObjectIsAnExpression

public static boolean checkIfObjectIsAnExpression(Object object)

buildTokens

public static String[] buildTokens(String vbString)

The string vbString is transferred into its tokens.