Package org.omg.CORBA
Class ObjectHolder
java.lang.Object
org.omg.CORBA.ObjectHolder
- All Implemented Interfaces:
Streamable
The Holder for Object. For more information on
Holder files, see
"Generated Files: Holder Files".
A Holder class for a CORBA object reference (a value of type
org.omg.CORBA.Object
). It is usually
used to store "out" and "inout" parameters in IDL methods.
If an IDL method signature has a CORBA Object reference as an "out"
or "inout" parameter, the programmer must pass an instance of
ObjectHolder
as the corresponding
parameter in the method invocation; for "inout" parameters, the programmer
must also fill the "in" value to be sent to the server.
Before the method invocation returns, the ORB will fill in the
value corresponding to the "out" value returned from the server.
If myObjectHolder
is an instance of ObjectHolder
,
the value stored in its value
field can be accessed with
myObjectHolder.value
.
- Since:
- JDK1.2
- Version:
- 1.14, 09/09/97
-
Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionConstructs a newObjectHolder
object with itsvalue
field initialized tonull
.ObjectHolder
(Object initial) Constructs a newObjectHolder
object with itsvalue
field initialized to the givenObject
. -
Method Summary
Modifier and TypeMethodDescriptionvoid
_read
(InputStream input) Reads frominput
and initalizes the value in thisObjectHolder
object with the unmarshalled data._type()
Returns the TypeCode corresponding to the value held in thisObjectHolder
objectvoid
_write
(OutputStream output) Marshals tooutput
the value in thisObjectHolder
object.
-
Field Details
-
value
TheObject
value held by thisObjectHolder
object.
-
-
Constructor Details
-
ObjectHolder
public ObjectHolder()Constructs a newObjectHolder
object with itsvalue
field initialized tonull
. -
ObjectHolder
Constructs a newObjectHolder
object with itsvalue
field initialized to the givenObject
.- Parameters:
initial
- theObject
with which to initialize thevalue
field of the newly-createdObjectHolder
object
-
-
Method Details
-
_read
Reads frominput
and initalizes the value in thisObjectHolder
object with the unmarshalled data.- Specified by:
_read
in interfaceStreamable
- Parameters:
input
- the InputStream containing CDR formatted data from the wire.
-
_write
Marshals tooutput
the value in thisObjectHolder
object.- Specified by:
_write
in interfaceStreamable
- Parameters:
output
- the OutputStream which will contain the CDR formatted data.
-
_type
Returns the TypeCode corresponding to the value held in thisObjectHolder
object- Specified by:
_type
in interfaceStreamable
- Returns:
- the TypeCode of the value held in
this
ObjectHolder
object
-