org.nuxeo.ecm.platform.ui.web.util

Class ComponentTagUtils

java.lang.Object

org.nuxeo.ecm.platform.ui.web.util.ComponentTagUtils

public final class ComponentTagUtils
extends Object

Component tag utils.

Author:

Anahide Tchertchian

Method Summary

Methods

Modifier and Type	Method and Description
static void	applyValueExpression(javax.faces.context.FacesContext context, String elExpression, Object value) Resolves given value expression as string and sets given value on it.
static String	getBareValueName(String valueReference) Returns a value name for given strict value reference.
static boolean	isMethodReference(String value) Deprecated. since 5.5: method and value references are now equivalent with jboss EL
static boolean	isStrictValueReference(String value) Returns true if the specified value is a value expression, e.g starting and ending with EL markers after being trimmed.
static boolean	isValueReference(String value) Returns true if the specified value contains a value expression, e.g the start and end of EL markers.
static Object	resolveElExpression(javax.faces.view.facelets.FaceletContext faceletContext, String elExpression) Resolves an expression from a given facelet context, using its ExpressionFactory that can hold a wider context than the faces context behind it.
static Object	resolveElExpression(javax.faces.context.FacesContext context, String elExpression) Resolves an expression from a given faces context.

Methods inherited from class java.lang.Object

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

Method Detail

isValueReference

public static boolean isValueReference(String value)

Returns true if the specified value contains a value expression, e.g the start and end of EL markers.

Parameters:

value - the value to evaluate, returns false if null

isStrictValueReference

public static boolean isStrictValueReference(String value)

Returns true if the specified value is a value expression, e.g starting and ending with EL markers after being trimmed.

Parameters:

value - the value to evaluate, returns false if null

Since:

5.6

getBareValueName

public static String getBareValueName(String valueReference)

Returns a value name for given strict value reference. If reference is #{foo} or ${foo}, will return "foo".

Parameters:

valueReference -

Throws:

IllegalArgumentException - if reference is null or isStrictValueReference(String) returns false.

Since:

5.6

isMethodReference

@Deprecated
public static boolean isMethodReference(String value)

Deprecated. since 5.5: method and value references are now equivalent with jboss EL

Returns true if the specified value conforms to the syntax requirements of a method binding expression.

The method can have parameters and the expression must use parentheses even if no parameters are needed.

Parameters:

value - the value to evaluate (not null)

resolveElExpression

public static Object resolveElExpression(javax.faces.context.FacesContext context,
                         String elExpression)

Resolves an expression from a given faces context.

Resolves the expression a second time when first resolution gives a String value using the EL Expression syntax.

Does not throw any error when resolution fails (only logs an error message).

See Also:

resolveElExpression(FaceletContext, String)

applyValueExpression

public static void applyValueExpression(javax.faces.context.FacesContext context,
                        String elExpression,
                        Object value)

Resolves given value expression as string and sets given value on it.

Since:

6.0

resolveElExpression

public static Object resolveElExpression(javax.faces.view.facelets.FaceletContext faceletContext,
                         String elExpression)

Resolves an expression from a given facelet context, using its ExpressionFactory that can hold a wider context than the faces context behind it.

Resolves the expression a second time when first resolution gives a String value using the EL Expression syntax.

Does not throw any error when resolution fails (only logs an error message).