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public interface TemplateClassResolver
Used by built-ins and other template language features that get a class
based on a string. This can be handy both for implementing security
restrictions and for working around local class-loader issues.
The implementation should be thread-safe, unless an
instance is always only used in a single Environment
object.
Configurable.setNewBuiltinClassResolver(TemplateClassResolver)
Field Summary | |
---|---|
static TemplateClassResolver |
ALLOWS_NOTHING_RESOLVER
Doesn't allow resolving any classes. |
static TemplateClassResolver |
SAFER_RESOLVER
Same as UNRESTRICTED_RESOLVER , except that it doesn't allow
resolving ObjectConstructor . |
static TemplateClassResolver |
UNRESTRICTED_RESOLVER
Simply calls ClassUtil.forName(String) . |
Method Summary | |
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java.lang.Class |
resolve(java.lang.String className,
Environment env,
Template template)
Gets a Class based on the class name. |
Field Detail |
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static final TemplateClassResolver UNRESTRICTED_RESOLVER
ClassUtil.forName(String)
.
static final TemplateClassResolver SAFER_RESOLVER
UNRESTRICTED_RESOLVER
, except that it doesn't allow
resolving ObjectConstructor
.
static final TemplateClassResolver ALLOWS_NOTHING_RESOLVER
Method Detail |
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java.lang.Class resolve(java.lang.String className, Environment env, Template template) throws TemplateException
Class
based on the class name.
className
- the full-qualified class nameenv
- the environment in which the template executestemplate
- the template where the operation that require the
class resolution resides in. This is null
if the
call doesn't come from a template.
TemplateException
- if the class can't be found or shouldn't be
accessed from a template for security reasons.
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