public abstract class ELResolver extends Object
| Modifier and Type | Field and Description | 
|---|---|
| static String | RESOLVABLE_AT_DESIGN_TIME | 
| static String | TYPE | 
| Constructor and Description | 
|---|
| ELResolver() | 
| Modifier and Type | Method and Description | 
|---|---|
| abstract Class<?> | getCommonPropertyType(ELContext context,
                     Object base) | 
| abstract Iterator<FeatureDescriptor> | getFeatureDescriptors(ELContext context,
                     Object base) | 
| abstract Class<?> | getType(ELContext context,
       Object base,
       Object property) | 
| abstract Object | getValue(ELContext context,
        Object base,
        Object property) | 
| Object | invoke(ELContext context,
      Object base,
      Object method,
      Class<?>[] paramTypes,
      Object[] params)Invokes a method on the the given object. | 
| abstract boolean | isReadOnly(ELContext context,
          Object base,
          Object property) | 
| abstract void | setValue(ELContext context,
        Object base,
        Object property,
        Object value) | 
public static final String TYPE
public static final String RESOLVABLE_AT_DESIGN_TIME
public abstract Object getValue(ELContext context, Object base, Object property)
context - The EL context for this evaluationbase - The base object on which the property is to be foundproperty - The property whose value is to be returnedNullPointerException - If the supplied context is nullPropertyNotFoundException - If the base/property combination provided to the resolver is
              one that the resolver can handle but no match was found or a
              match was found but was not readableELException - Wraps any exception throw whilst resolving the propertypublic Object invoke(ELContext context, Object base, Object method, Class<?>[] paramTypes, Object[] params)
null.context - The EL context for this evaluationbase - The base object on which the method is to be foundmethod - The method to invokeparamTypes - The types of the parameters of the method to invokeparams - The parameters with which to invoke the methodnullpublic abstract Class<?> getType(ELContext context, Object base, Object property)
context - The EL context for this evaluationbase - The base object on which the property is to be foundproperty - The property whose type is to be returnedNullPointerException - If the supplied context is nullPropertyNotFoundException - If the base/property combination provided to the resolver is
              one that the resolver can handle but no match was found or a
              match was found but was not readableELException - Wraps any exception throw whilst resolving the propertypublic abstract void setValue(ELContext context, Object base, Object property, Object value)
context - The EL context for this evaluationbase - The base object on which the property is to be foundproperty - The property whose value is to be setvalue - The value to set the property toNullPointerException - If the supplied context is nullPropertyNotFoundException - If the base/property combination provided to the resolver is
              one that the resolver can handle but no match was foundPropertyNotWritableException - If the base/property combination provided to the resolver is
              one that the resolver can handle but the property was not
              writableELException - Wraps any exception throw whilst resolving the propertypublic abstract boolean isReadOnly(ELContext context, Object base, Object property)
context - The EL context for this evaluationbase - The base object on which the property is to be foundproperty - The property to be checked for read only statustrue if the identified property is read only,
         otherwise falseNullPointerException - If the supplied context is nullPropertyNotFoundException - If the base/property combination provided to the resolver is
              one that the resolver can handle but no match was foundELException - Wraps any exception throw whilst resolving the propertypublic abstract Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base)
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