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JavaTM 2 Platform
Standard Edition

org.omg.CORBA
Interface DynAny

All Known Subinterfaces:
DynArray, DynEnum, DynFixed, DynSequence, DynStruct, DynUnion, DynValue

public interface DynAny
extends Object

An object that enables the dynamic management of Any values. A DynAny object allows a program to use an Any object when the program has no static information about the type of the Any object. The DynAny interface provides methods for traversing the data value associated with an Any object at run time and for extracting the primitive constituents of the data value.

A DynAny object is associated with a data value that may correspond to a copy of the value inserted into an Any object. The DynAny object may be seen as owning a pointer to an external buffer that holds some representation of the data value.

For data values that are constructed types (IDL struct, sequence, array, union, and so on), the DynAny object also can be thought of as holding a pointer to a buffer offset where the current component of the constructed type is being represented. The buffer pointer effectively points to the space used to represent the first component of the data value when the programmer creates the DynAny object. Calling the DynAny method next will move the pointer to the next component, making it possible to iterate through the components of a constructed data value. The buffer pointer is moved back to the first component each time the method rewind is called.

DynAny methods make it possible to do the following:

Inserting a basic data type value into a constructed DynAny object implies initializing the next component of the constructed data value associated with the DynAny object. For example, invoking the method insert_boolean in a DynStruct implies inserting a boolean data value as the next member of the associated struct data value.

Creating a DynAny object can be done by:

Dynamic creation of an Any object containing a value of a basic data type typically involves the following:

Dynamic creation of an Any object containing a value of a constructed data type typically involves the following:

DynAny objects are intended to be local to the process in which they are created and used. Any method that attempts to export references to DynAny objects to other processes or to externalize them with the method org.omg.CORBA.ORB.object_to_string will throw a MARSHAL exception. Also, even though DynAny objects are derived from the interface Object, invoking methods from Object will throw the NO_IMPLEMENT exception. An attempt to use a DynAny object with the DII (Dynamic Invocation Interface) may throw a NO_IMPLEMENT exception.

The following classes are derived from DynAny and define additional methods relevant to their particular IDL type: DynFixed, DynStruct, DynSequence, DynArray, DynUnion, DynEnum, DynAny, and DynValue.


Method Summary
 void assign(DynAny dyn_any)
          Initializes the value associated with this DynAny object with the value associated with the given DynAny object.
 DynAny copy()
          Clone this DnyAny.
 DynAny current_component()
          Returns a DynAny object reference that can be used to get/set the value of the component currently accessed.
 void destroy()
          Destroys this DynAny object and frees any resources used to represent the data value associated with it.
 void from_any(Any value)
          Initializes the value associated with this DynAny object with the value associated with the given Any object.
 Any get_any()
          Retrieves the org.omg.CORBA.Any contained in this DynAny object.
 boolean get_boolean()
          Retrieves the boolean contained in this DynAny object.
 char get_char()
          Retrieves the char contained in this DynAny object.
 double get_double()
          Retrieves the double contained in this DynAny object.
 float get_float()
          Retrieves the float contained in this DynAny object.
 int get_long()
          Retrieves the int contained in this DynAny object.
 long get_longlong()
          Retrieves the long contained in this DynAny object.
 byte get_octet()
          Retrieves the byte contained in this DynAny object.
 Object get_reference()
          Retrieves the org.omg.CORBA.Other contained in this DynAny object.
 short get_short()
          Retrieves the short contained in this DynAny object.
 String get_string()
          Retrieves the String contained in this DynAny object.
 TypeCode get_typecode()
          Retrieves the org.omg.CORBA.TypeCode contained in this DynAny object.
 int get_ulong()
          Retrieves the int contained in this DynAny object.
 long get_ulonglong()
          Retrieves the long contained in this DynAny object.
 short get_ushort()
          Retrieves the short contained in this DynAny object.
 Serializable get_val()
          Retrieves the java.io.Serializable object contained in this DynAny object.
 char get_wchar()
          Retrieves the char contained in this DynAny object.
 String get_wstring()
          Retrieves the String contained in this DynAny object.
 void insert_any(Any value)
          Inserts the given org.omg.CORBA.Any object as the value for this DynAny object.
 void insert_boolean(boolean value)
          Inserts the given boolean as the value for this DynAny object.
 void insert_char(char value)
          Inserts the given char as the value for this DynAny object.
 void insert_double(double value)
          Inserts the given double as the value for this DynAny object.
 void insert_float(float value)
          Inserts the given float as the value for this DynAny object.
 void insert_long(int value)
          Inserts the given int as the value for this DynAny object.
 void insert_longlong(long value)
          Inserts the given long as the value for this DynAny object.
 void insert_octet(byte value)
          Inserts the given byte as the value for this DynAny object.
 void insert_reference(Object value)
          Inserts the given org.omg.CORBA.Object as the value for this DynAny object.
 void insert_short(short value)
          Inserts the given short as the value for this DynAny object.
 void insert_string(String value)
          Inserts the given String object as the value for this DynAny object.
 void insert_typecode(TypeCode value)
          Inserts the given org.omg.CORBA.TypeCode as the value for this DynAny object.
 void insert_ulong(int value)
          Inserts the given int as the value for this DynAny object.
 void insert_ulonglong(long value)
          Inserts the given long as the value for this DynAny object.
 void insert_ushort(short value)
          Inserts the given short as the value for this DynAny object.
 void insert_val(Serializable value)
          Inserts the given java.io.Serializable object as the value for this DynAny object.
 void insert_wchar(char value)
          Inserts the given char as the value for this DynAny object.
 void insert_wstring(String value)
          Inserts the given String as the value for this DynAny object.
 boolean next()
          Moves to the next component of this DynAny object.
 void rewind()
          Moves the internal pointer to the first component.
 boolean seek(int index)
          Moves the internal pointer to the given index.
 Any to_any()
          Creates an Any object from this DynAny object.
 TypeCode type()
          Retrieves the TypeCode object contained in this DynAny object.
 
Methods inherited from interface org.omg.CORBA.Object
_create_request, _create_request, _duplicate, _get_domain_managers, _get_interface_def, _get_policy, _hash, _is_a, _is_equivalent, _non_existent, _release, _request, _set_policy_override
 

Method Detail

type

public TypeCode type()
Retrieves the TypeCode object contained in this DynAny object. Note that the type code associated with a DynAny object is initialized at the time DynAny is created and cannot be changed during the lifetime of the DynAny object.
Returns:
the TypeCode object describing the value contained in this DynAny object

assign

public void assign(DynAny dyn_any)
            throws Invalid
Initializes the value associated with this DynAny object with the value associated with the given DynAny object.
Parameters:
dyn_any - the DynAny object whose value will be used to initialize this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.Invalid - if the given DynAny object has a type code that is not equivalent or has not been assigned a value

from_any

public void from_any(Any value)
              throws Invalid
Initializes the value associated with this DynAny object with the value associated with the given Any object.
Parameters:
value - the Any object whose value will be used to initialize this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.Invalid - if the given Any object has a type code that is not equivalent or has not been assigned a value

to_any

public Any to_any()
           throws Invalid
Creates an Any object from this DynAny object. The type code and value of this DynAny object are copied into the newly-created Any object.
Returns:
the newly-created Any object
Throws:
org.omg.CORBA.DynAnyPackage.Invalid - if this DynAny object has not been correctly created or does not contain a meaningful value

destroy

public void destroy()
Destroys this DynAny object and frees any resources used to represent the data value associated with it. This method also destroys all DynAny objects obtained from it.

Destruction of DynAny objects should be handled with care, taking into account issues dealing with the representation of data values associated with DynAny objects. A programmer who wants to destroy a DynAny object but still be able to manipulate some component of the data value associated with it, should first create a DynAny object for the component and then make a copy of the created DynAny object.


copy

public DynAny copy()
Clone this DnyAny.
Returns:
the DynAny.

insert_boolean

public void insert_boolean(boolean value)
                    throws InvalidValue
Inserts the given boolean as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the boolean to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_octet

public void insert_octet(byte value)
                  throws InvalidValue
Inserts the given byte as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the byte to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_char

public void insert_char(char value)
                 throws InvalidValue
Inserts the given char as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the char to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_short

public void insert_short(short value)
                  throws InvalidValue
Inserts the given short as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the short to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_ushort

public void insert_ushort(short value)
                   throws InvalidValue
Inserts the given short as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the short to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_long

public void insert_long(int value)
                 throws InvalidValue
Inserts the given int as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the int to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_ulong

public void insert_ulong(int value)
                  throws InvalidValue
Inserts the given int as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the int to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_float

public void insert_float(float value)
                  throws InvalidValue
Inserts the given float as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the float to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_double

public void insert_double(double value)
                   throws InvalidValue
Inserts the given double as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the double to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_string

public void insert_string(String value)
                   throws InvalidValue
Inserts the given String object as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the String to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_reference

public void insert_reference(Object value)
                      throws InvalidValue
Inserts the given org.omg.CORBA.Object as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the org.omg.CORBA.Object to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_typecode

public void insert_typecode(TypeCode value)
                     throws InvalidValue
Inserts the given org.omg.CORBA.TypeCode as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the org.omg.CORBA.TypeCode to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_longlong

public void insert_longlong(long value)
                     throws InvalidValue
Inserts the given long as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the long to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_ulonglong

public void insert_ulonglong(long value)
                      throws InvalidValue
Inserts the given long as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the long to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_wchar

public void insert_wchar(char value)
                  throws InvalidValue
Inserts the given char as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the char to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_wstring

public void insert_wstring(String value)
                    throws InvalidValue
Inserts the given String as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the String to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_any

public void insert_any(Any value)
                throws InvalidValue
Inserts the given org.omg.CORBA.Any object as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the org.omg.CORBA.Any object to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

insert_val

public void insert_val(Serializable value)
                throws InvalidValue
Inserts the given java.io.Serializable object as the value for this DynAny object.

If this method is called on a constructed DynAny object, it initializes the next component of the constructed data value associated with this DynAny object.

Parameters:
value - the java.io.Serializable object to insert into this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.InvalidValue - if the value inserted is not consistent with the type of the accessed component in this DynAny object

get_val

public Serializable get_val()
                     throws TypeMismatch
Retrieves the java.io.Serializable object contained in this DynAny object.
Returns:
the java.io.Serializable object that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a java.io.Serializable object

get_boolean

public boolean get_boolean()
                    throws TypeMismatch
Retrieves the boolean contained in this DynAny object.
Returns:
the boolean that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a boolean

get_octet

public byte get_octet()
               throws TypeMismatch
Retrieves the byte contained in this DynAny object.
Returns:
the byte that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a byte

get_char

public char get_char()
              throws TypeMismatch
Retrieves the char contained in this DynAny object.
Returns:
the char that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a char

get_short

public short get_short()
                throws TypeMismatch
Retrieves the short contained in this DynAny object.
Returns:
the short that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a short

get_ushort

public short get_ushort()
                 throws TypeMismatch
Retrieves the short contained in this DynAny object.
Returns:
the short that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a short

get_long

public int get_long()
             throws TypeMismatch
Retrieves the int contained in this DynAny object.
Returns:
the int that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a int

get_ulong

public int get_ulong()
              throws TypeMismatch
Retrieves the int contained in this DynAny object.
Returns:
the int that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a int

get_float

public float get_float()
                throws TypeMismatch
Retrieves the float contained in this DynAny object.
Returns:
the float that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a float

get_double

public double get_double()
                  throws TypeMismatch
Retrieves the double contained in this DynAny object.
Returns:
the double that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a double

get_string

public String get_string()
                  throws TypeMismatch
Retrieves the String contained in this DynAny object.
Returns:
the String that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a String

get_reference

public Object get_reference()
                     throws TypeMismatch
Retrieves the org.omg.CORBA.Other contained in this DynAny object.
Returns:
the org.omg.CORBA.Other that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for an org.omg.CORBA.Other

get_typecode

public TypeCode get_typecode()
                      throws TypeMismatch
Retrieves the org.omg.CORBA.TypeCode contained in this DynAny object.
Returns:
the org.omg.CORBA.TypeCode that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a org.omg.CORBA.TypeCode

get_longlong

public long get_longlong()
                  throws TypeMismatch
Retrieves the long contained in this DynAny object.
Returns:
the long that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a long

get_ulonglong

public long get_ulonglong()
                   throws TypeMismatch
Retrieves the long contained in this DynAny object.
Returns:
the long that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a long

get_wchar

public char get_wchar()
               throws TypeMismatch
Retrieves the char contained in this DynAny object.
Returns:
the char that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a char

get_wstring

public String get_wstring()
                   throws TypeMismatch
Retrieves the String contained in this DynAny object.
Returns:
the String that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a String

get_any

public Any get_any()
            throws TypeMismatch
Retrieves the org.omg.CORBA.Any contained in this DynAny object.
Returns:
the org.omg.CORBA.Any that is the value for this DynAny object
Throws:
org.omg.CORBA.DynAnyPackage.TypeMismatch - if the type code of the accessed component in this DynAny object is not equivalent to the type code for a org.omg.CORBA.Any

current_component

public DynAny current_component()
Returns a DynAny object reference that can be used to get/set the value of the component currently accessed. The appropriate or insert method can be called on the resulting DynAny object to initialize the component. The appropriate get method can be called on the resulting DynAny object to extract the value of the component.

next

public boolean next()
Moves to the next component of this DynAny object. This method is used for iterating through the components of a constructed type, effectively moving a pointer from one component to the next. The pointer starts out on the first component when a DynAny object is created.
Returns:
true if the pointer points to a component; false if there are no more components or this DynAny is associated with a basic type rather than a constructed type

seek

public boolean seek(int index)
Moves the internal pointer to the given index. Logically, this method sets a new offset for this pointer.
Parameters:
index - an int indicating the position to which the pointer should move. The first position is 0.
Returns:
true if the pointer points to a component; false if there is no component at the designated index. If this DynAny object is associated with a basic type, this method returns false for any index other than 0.

rewind

public void rewind()
Moves the internal pointer to the first component.

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