Class ObjectHolder
- java.lang.Object
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- org.omg.CORBA.ObjectHolder
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- All Implemented Interfaces:
- Streamable
public final class ObjectHolder extends Object implements 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 ofObjectHolderas 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
myObjectHolderis an instance ofObjectHolder, the value stored in itsvaluefield can be accessed withmyObjectHolder.value.- Since:
- JDK1.2
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Field Summary
Fields Modifier and Type Field and Description ObjectvalueTheObjectvalue held by thisObjectHolderobject.
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Constructor Summary
Constructors Constructor and Description ObjectHolder()Constructs a newObjectHolderobject with itsvaluefield initialized tonull.ObjectHolder(Object initial)Constructs a newObjectHolderobject with itsvaluefield initialized to the givenObject.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description void_read(InputStream input)Reads frominputand initalizes the value in thisObjectHolderobject with the unmarshalled data.TypeCode_type()Returns the TypeCode corresponding to the value held in thisObjectHolderobjectvoid_write(OutputStream output)Marshals tooutputthe value in thisObjectHolderobject.
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Field Detail
value
public Object value
TheObjectvalue held by thisObjectHolderobject.
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Constructor Detail
ObjectHolder
public ObjectHolder()
Constructs a newObjectHolderobject with itsvaluefield initialized tonull.
ObjectHolder
public ObjectHolder(Object initial)
Constructs a newObjectHolderobject with itsvaluefield initialized to the givenObject.- Parameters:
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initial- theObjectwith which to initialize thevaluefield of the newly-createdObjectHolderobject
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Method Detail
_read
public void _read(InputStream input)
Reads frominputand initalizes the value in thisObjectHolderobject with the unmarshalled data.- Specified by:
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_readin interfaceStreamable - Parameters:
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input- the InputStream containing CDR formatted data from the wire.
_write
public void _write(OutputStream output)
Marshals tooutputthe value in thisObjectHolderobject.- Specified by:
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_writein interfaceStreamable - Parameters:
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output- the OutputStream which will contain the CDR formatted data.
_type
public TypeCode _type()
Returns the TypeCode corresponding to the value held in thisObjectHolderobject- Specified by:
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_typein interfaceStreamable - Returns:
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the TypeCode of the value held in this
ObjectHolderobject
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