Class PathELResolver


  • public class PathELResolver
    extends ELResolver
    Handle dot series path when evaluating expression.
    Since:
    6.0.0
    Author:
    henrichen
    • Constructor Detail

      • PathELResolver

        public PathELResolver()
    • Method Detail

      • getValue

        public java.lang.Object getValue​(ELContext ctx,
                                         java.lang.Object base,
                                         java.lang.Object property)
                                  throws java.lang.NullPointerException,
                                         PropertyNotFoundException,
                                         ELException
        Specified by:
        getValue in class ELResolver
        Parameters:
        ctx - The EL context for this evaluation
        base - The base object on which the property is to be found
        property - The property whose value is to be returned
        Returns:
        the value of the provided property
        Throws:
        java.lang.NullPointerException - If the supplied context is null
        PropertyNotFoundException - 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 readable
        ELException - Wraps any exception throw whilst resolving the property
      • getType

        public java.lang.Class<?> getType​(ELContext ctx,
                                          java.lang.Object base,
                                          java.lang.Object property)
                                   throws java.lang.NullPointerException,
                                          PropertyNotFoundException,
                                          ELException
        Specified by:
        getType in class ELResolver
        Parameters:
        ctx - The EL context for this evaluation
        base - The base object on which the property is to be found
        property - The property whose type is to be returned
        Returns:
        the type of the provided property
        Throws:
        java.lang.NullPointerException - If the supplied context is null
        PropertyNotFoundException - 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 readable
        ELException - Wraps any exception throw whilst resolving the property
      • setValue

        public void setValue​(ELContext ctx,
                             java.lang.Object base,
                             java.lang.Object property,
                             java.lang.Object value)
                      throws java.lang.NullPointerException,
                             PropertyNotFoundException,
                             PropertyNotWritableException,
                             ELException
        Specified by:
        setValue in class ELResolver
        Parameters:
        ctx - The EL context for this evaluation
        base - The base object on which the property is to be found
        property - The property whose value is to be set
        value - The value to set the property to
        Throws:
        java.lang.NullPointerException - If the supplied context is null
        PropertyNotFoundException - If the base/property combination provided to the resolver is one that the resolver can handle but no match was found
        PropertyNotWritableException - If the base/property combination provided to the resolver is one that the resolver can handle but the property was not writable
        ELException - Wraps any exception throw whilst resolving the property
      • isReadOnly

        public boolean isReadOnly​(ELContext context,
                                  java.lang.Object base,
                                  java.lang.Object property)
                           throws java.lang.NullPointerException,
                                  PropertyNotFoundException,
                                  ELException
        Specified by:
        isReadOnly in class ELResolver
        Parameters:
        context - The EL context for this evaluation
        base - The base object on which the property is to be found
        property - The property to be checked for read only status
        Returns:
        true if the identified property is read only, otherwise false
        Throws:
        java.lang.NullPointerException - If the supplied context is null
        PropertyNotFoundException - If the base/property combination provided to the resolver is one that the resolver can handle but no match was found
        ELException - Wraps any exception throw whilst resolving the property
      • getFeatureDescriptors

        public java.util.Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors​(ELContext context,
                                                                                      java.lang.Object base)
        Specified by:
        getFeatureDescriptors in class ELResolver