Class MapModel

    • Constructor Detail

      • MapModel

        public MapModel​(java.util.Map map,
                        BeansWrapper wrapper)
        Creates a new model that wraps the specified map object.
        Parameters:
        map - the map object to wrap into a model.
        wrapper - the BeansWrapper associated with this model. Every model has to have an associated BeansWrapper instance. The model gains many attributes from its wrapper, including the caching behavior, method exposure level, method-over-item shadowing policy etc.
    • Method Detail

      • exec

        public java.lang.Object exec​(java.util.List arguments)
                              throws TemplateModelException
        The first argument is used as a key to call the map's get method.
        Specified by:
        exec in interface TemplateMethodModel
        Specified by:
        exec in interface TemplateMethodModelEx
        Parameters:
        arguments - a List of TemplateModel-s, containing the arguments passed to the method. If the implementation absolutely wants to operate on POJOs, it can use the static utility methods in the DeepUnwrap class to easily obtain them. However, unwrapping is not always possible (or not perfectly), and isn't always efficient, so it's recommended to use the original TemplateModel value as much as possible.
        Returns:
        the return value of the method, or null. If the returned value does not implement TemplateModel, it will be automatically wrapped using the environment's object wrapper.
        Throws:
        TemplateModelException
      • isEmpty

        public boolean isEmpty()
        Description copied from class: BeanModel
        Tells whether the model is empty. It is empty if either the wrapped object is null, or it's a Boolean with false value.
        Specified by:
        isEmpty in interface TemplateHashModel
        Overrides:
        isEmpty in class BeanModel
      • keySet

        protected java.util.Set keySet()
        Description copied from class: BeanModel
        Helper method to support TemplateHashModelEx. Returns the Set of Strings which are available via the TemplateHashModel interface. Subclasses that override invokeGenericGet to provide additional hash keys should also override this method.
        Overrides:
        keySet in class BeanModel