A reference to an indirect object.
The PDF syntax allows for references to existing and non-existing indirect objects. Such references are represented with objects of this class.
Note that after initialization changing the object or generation numbers is not possible anymore!
The methods hash and eql? are implemented so that objects of this class can be used as hash keys. Furthermore the implementation is compatible to the one of Object, i.e. the hash of a Reference object is the same as the hash of an indirect Object.
See: PDF1.7 s7.3.10, Object
Returns the generation number of the referenced indirect object.
Returns the object number of the referenced indirect object.
Public Class Methods
Public Instance Methods
Compares this object to another object.
If the other object does not respond to
nil is returned. Otherwise objects are
ordered first by object number and then by generation number.
true if the other object references the same PDF
object as this reference object.
Computes the hash value based on the object and generation numbers.
Returns the object identifier as “oid,gen”.