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 package javax.faces.el;
 
 

ValueBinding is an object that can be used to access the property represented by an action or value binding expression. An immutable ValueBinding for a particular value binding can be acquired by calling the createValueBinding() method of the javax.faces.application.Application instance for this web application.

Deprecated:
This has been replaced by javax.el.ValueExpression.
 
 
 public abstract class ValueBinding {


    

Return the value of the property represented by this ValueBinding, relative to the specified javax.faces.context.FacesContext.

Parameters:
context javax.faces.context.FacesContext for the current request
Throws:
EvaluationException if an exception is thrown while getting the value (the thrown exception must be included as the cause property of this exception)
java.lang.NullPointerException if context is null
PropertyNotFoundException if a specified property name does not exist, or is not readable
 
     public abstract Object getValue(FacesContext context)
         throws EvaluationExceptionPropertyNotFoundException;


    

Set the value of the property represented by this ValueBinding, relative to the specified javax.faces.context.FacesContext.

Parameters:
context javax.faces.context.FacesContext for the current request
value The new value to be set
Throws:
EvaluationException if an exception is thrown while setting the value (the thrown exception must be included as the cause property of this exception)
java.lang.NullPointerException if context is null
PropertyNotFoundException if a specified property name does not exist, or is not writeable
 
     public abstract void setValue(FacesContext contextObject value)
         throws EvaluationExceptionPropertyNotFoundException;


    

Return true if the specified property of the specified property is known to be immutable; otherwise, return false.

Parameters:
context javax.faces.context.FacesContext for the current request
Throws:
EvaluationException if an exception is thrown while getting the description of the property (the thrown exception must be included as the cause property of this exception)
java.lang.NullPointerException if context is null
PropertyNotFoundException if a specified property name does not exist
    public abstract boolean isReadOnly(FacesContext context)
        throws EvaluationExceptionPropertyNotFoundException;


    

Return the type of the property represented by this ValueBinding, relative to the specified javax.faces.context.FacesContext.

Parameters:
context javax.faces.context.FacesContext for the current request
Throws:
EvaluationException if an exception is thrown while getting the description of the property (the thrown exception must be included as the cause property of this exception)
java.lang.NullPointerException if context is null
PropertyNotFoundException if a specified property name does not exist
    public abstract Class getType(FacesContext context)
        throws EvaluationExceptionPropertyNotFoundException;


    

Return the (possibly null) expression String, including the delimiters, from which this ValueBinding was built.

    public String getExpressionString() {
	return null;
    }
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