public abstract class NVList extends Object
NamedValue objects.
The class NVList is used as follows:
Request object
in the Dynamic Invocation Interface and
the Dynamic Skeleton Interface
Context object
Each NamedValue object consists of the following:
String object
Any object
An NVList object
may be created using one of the following
ORB methods:
org.omg.CORBA.ORB.create_list
org.omg.CORBA.NVList nv = orb.create_list(3);
The variable nv represents a newly-created
NVList object. The argument is a memory-management
hint to the orb and does not imply the actual length of the list.
If, for example, you want to use an NVList object
in a request, and the method being invoked takes three parameters,
you might optimize by supplying 3 to the method
create_list. Note that the new NVList
will not necessarily have a length of 3; it
could have a length of 2 or 4, for instance.
Note also that you can add any number of
NamedValue objects to this list regardless of
its original length.
org.omg.CORBA.ORB.create_operation_list
org.omg.CORBA.NVList nv = orb.create_operation_list(myOperationDef);
The variable nv represents a newly-created
NVList object that contains descriptions of the
arguments to the method described in the given
OperationDef object.
The methods in the class NVList all deal with
the NamedValue objects in the list.
There are three methods for adding a NamedValue object,
a method for getting the count of NamedValue objects in
the list, a method for retrieving a NamedValue object
at a given index, and a method for removing a NamedValue object
at a given index.
Request,
ServerRequest,
NamedValue,
Context| Constructor and Description |
|---|
NVList() |
| Modifier and Type | Method and Description |
|---|---|
abstract NamedValue |
add_item(String item_name,
int flags)
Creates a new
NamedValue object initialized with the
given name and flag,
and adds it to the end of this NVList object. |
abstract NamedValue |
add_value(String item_name,
Any val,
int flags)
Creates a new
NamedValue object initialized with the
given name, value, and flag,
and adds it to the end of this NVList object. |
abstract NamedValue |
add(int flags)
Creates a new
NamedValue object initialized with the given flag
and adds it to the end of this NVList object. |
abstract int |
count()
Returns the number of
NamedValue objects that have
been added to this NVList object. |
abstract NamedValue |
item(int index)
Retrieves the
NamedValue object at the given index. |
abstract void |
remove(int index)
Removes the
NamedValue object at the given index. |
public abstract int count()
NamedValue objects that have
been added to this NVList object.int indicating the number of
NamedValue objects in this NVList.public abstract NamedValue add(int flags)
NamedValue object initialized with the given flag
and adds it to the end of this NVList object.
The flag can be any one of the argument passing modes:
ARG_IN.value, ARG_OUT.value, or
ARG_INOUT.value.flags - one of the argument mode flagsNamedValue objectpublic abstract NamedValue add_item(String item_name, int flags)
NamedValue object initialized with the
given name and flag,
and adds it to the end of this NVList object.
The flag can be any one of the argument passing modes:
ARG_IN.value, ARG_OUT.value, or
ARG_INOUT.value.item_name - the name for the new NamedValue objectflags - one of the argument mode flagsNamedValue objectpublic abstract NamedValue add_value(String item_name, Any val, int flags)
NamedValue object initialized with the
given name, value, and flag,
and adds it to the end of this NVList object.item_name - the name for the new NamedValue objectval - an Any object containing the value
for the new NamedValue objectflags - one of the following argument passing modes:
ARG_IN.value, ARG_OUT.value, or
ARG_INOUT.valueNamedValue objectpublic abstract NamedValue item(int index) throws Bounds
NamedValue object at the given index.index - the index of the desired NamedValue object,
which must be between zero and the length of the list
minus one, inclusive. The first item is at index zero.NamedValue object at the given indexBounds - if the index is greater than
or equal to number of NamedValue objectspublic abstract void remove(int index)
throws Bounds
NamedValue object at the given index.
Note that the indices of all NamedValue objects following
the one removed are shifted down by one.index - the index of the NamedValue object to be
removed, which must be between zero and the length
of the list minus one, inclusive.
The first item is at index zero.Bounds - if the index is greater than
or equal to number of NamedValue objects in
the list Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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