java.lang.Object
java.lang.module.ModuleReference
A reference to a module's content.
A module reference is a concrete implementation of this class that
implements the abstract methods defined by this class. It contains the
module's descriptor and its location, if known. It also has the ability to
create a ModuleReader in order to access the module's content, which
may be inside the Java run-time system itself or in an artifact such as a
modular JAR file.
- Since:
- 9
- See Also:
-
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedModuleReference(ModuleDescriptor descriptor, URI location) Constructs a new instance of this class. -
Method Summary
Modifier and TypeMethodDescriptionfinal ModuleDescriptorReturns the module descriptor.location()Returns the location of this module's content, if known.abstract ModuleReaderopen()Opens the module content for reading.
-
Constructor Details
-
ModuleReference
Constructs a new instance of this class.- Parameters:
descriptor- The module descriptorlocation- The module location ornullif not known
-
-
Method Details
-
descriptor
Returns the module descriptor.- Returns:
- The module descriptor
-
location
Returns the location of this module's content, if known.This URI, when present, can be used as the location value of a
CodeSourceso that a module's classes can be granted specific permissions when loaded by aSecureClassLoader.- Returns:
- The location or an empty
Optionalif not known
-
open
Opens the module content for reading.- Returns:
- A
ModuleReaderto read the module - Throws:
IOException- If an I/O error occursSecurityException- If denied by the security manager
-