Class JexlPermissions.Delegate
- java.lang.Object
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- org.apache.commons.jexl3.introspection.JexlPermissions.Delegate
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- All Implemented Interfaces:
JexlPermissions
- Direct Known Subclasses:
JexlPermissions.ClassPermissions
- Enclosing interface:
- JexlPermissions
public static class JexlPermissions.Delegate extends java.lang.Object implements JexlPermissions
A base for permission delegation allowing functional refinement. Overloads should call the appropriate validate() method early in their body.
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.apache.commons.jexl3.introspection.JexlPermissions
JexlPermissions.ClassPermissions, JexlPermissions.Delegate
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Field Summary
Fields Modifier and Type Field Description protected JexlPermissions
base
The permissions we delegate to.-
Fields inherited from interface org.apache.commons.jexl3.introspection.JexlPermissions
RESTRICTED, UNRESTRICTED
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Constructor Summary
Constructors Modifier Constructor Description protected
Delegate(JexlPermissions delegate)
Constructs a new instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
allow(java.lang.Class<?> clazz)
Checks whether a class allows JEXL introspection.boolean
allow(java.lang.Package pack)
Checks whether a package allows JEXL introspection.boolean
allow(java.lang.reflect.Constructor<?> ctor)
Checks whether a constructor allows JEXL introspection.boolean
allow(java.lang.reflect.Field field)
Checks whether a field explicitly disallows JEXL introspection.boolean
allow(java.lang.reflect.Method method)
Checks whether a method allows JEXL introspection.JexlPermissions
compose(java.lang.String... src)
Compose these permissions with a new set.
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Field Detail
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base
protected final JexlPermissions base
The permissions we delegate to.
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Constructor Detail
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Delegate
protected Delegate(JexlPermissions delegate)
Constructs a new instance.- Parameters:
delegate
- the delegate.
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Method Detail
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allow
public boolean allow(java.lang.Class<?> clazz)
Description copied from interface:JexlPermissions
Checks whether a class allows JEXL introspection.If the class disallows JEXL introspection, none of its constructors, methods or fields as well as derived classes are visible to JEXL and can not be used in scripts or expressions. If one of its super-classes is not allowed, tbe class is not allowed either.
For interfaces, only methods and fields are disallowed in derived interfaces or implementing classes.
- Specified by:
allow
in interfaceJexlPermissions
- Parameters:
clazz
- the class to check- Returns:
- true if JEXL is allowed to introspect, false otherwise
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allow
public boolean allow(java.lang.reflect.Constructor<?> ctor)
Description copied from interface:JexlPermissions
Checks whether a constructor allows JEXL introspection.If a constructor is not allowed, the new operator can not be used to instantiate its declared class in scripts or expressions.
- Specified by:
allow
in interfaceJexlPermissions
- Parameters:
ctor
- the constructor to check- Returns:
- true if JEXL is allowed to introspect, false otherwise
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allow
public boolean allow(java.lang.reflect.Field field)
Description copied from interface:JexlPermissions
Checks whether a field explicitly disallows JEXL introspection.If a field is not allowed, it can not resolved and accessed in scripts or expressions.
- Specified by:
allow
in interfaceJexlPermissions
- Parameters:
field
- the field to check- Returns:
- true if JEXL is allowed to introspect, false otherwise
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allow
public boolean allow(java.lang.reflect.Method method)
Description copied from interface:JexlPermissions
Checks whether a method allows JEXL introspection.If a method is not allowed, it can not resolved and called in scripts or expressions.
Since methods can be overridden and overloaded, this also checks that no superclass or interface explicitly disallows this methods.
- Specified by:
allow
in interfaceJexlPermissions
- Parameters:
method
- the method to check- Returns:
- true if JEXL is allowed to introspect, false otherwise
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allow
public boolean allow(java.lang.Package pack)
Description copied from interface:JexlPermissions
Checks whether a package allows JEXL introspection.If the package disallows JEXL introspection, none of its classes or interfaces are visible to JEXL and can not be used in scripts or expression.
- Specified by:
allow
in interfaceJexlPermissions
- Parameters:
pack
- the package- Returns:
- true if JEXL is allowed to introspect, false otherwise
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compose
public JexlPermissions compose(java.lang.String... src)
Description copied from interface:JexlPermissions
Compose these permissions with a new set.This is a convenience method meant to easily give access to the packages JEXL is used to integrate with. For instance, using
would extend the restricted set of permissions by allowing the com.my.app package.JexlPermissions.RESTRICTED
.compose("com.my.app.*")- Specified by:
compose
in interfaceJexlPermissions
- Parameters:
src
- the new constraints- Returns:
- the new permissions
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