Package freemarker.template.utility

Class ObjectConstructor

java.lang.Object

freemarker.template.utility.ObjectConstructor

All Implemented Interfaces:

TemplateMethodModel, TemplateMethodModelEx, TemplateModel

public class ObjectConstructor
extends java.lang.Object
implements TemplateMethodModelEx

An object that you can make available in a template to instantiate arbitrary beans-wrapped objects in a template. Beware of this class's security implications. It allows the instantiation of arbitrary objects and invoking methods on them. Usage is something like:

myDataModel.put("objectConstructor", new ObjectConstructor());

And then from your FTL code:

<#assign aList = objectConstructor("java.util.ArrayList", 100)>

Field Summary

Fields inherited from interface freemarker.template.TemplateModel

NOTHING

Constructor Summary

Constructors

Constructor	Description
ObjectConstructor()

Method Summary

Modifier and Type	Method	Description
java.lang.Object	exec(java.util.List args)	Executes the method call.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectConstructor

public ObjectConstructor()

Method Detail

exec

public java.lang.Object exec(java.util.List args)
                      throws TemplateModelException

Description copied from interface: TemplateMethodModelEx

Executes the method call.

Specified by:

exec in interface TemplateMethodModel

Specified by:

exec in interface TemplateMethodModelEx

Parameters:

args - 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