package org.omg.DynamicAny; /** * org/omg/DynamicAny/DynAnyFactoryOperations.java . * Generated by the IDL-to-Java compiler (portable), version "3.2" * from ../../../../src/share/classes/org/omg/DynamicAny/DynamicAny.idl * Friday, May 25, 2007 3:39:58 o'clock PM GMT-05:00 */ /** * DynAny objects can be created by invoking operations on the DynAnyFactory object. * Generally there are only two ways to create a DynAny object: * <UL> * <LI>invoking an operation on an existing DynAny object * <LI>invoking an operation on a DynAnyFactory object * </UL> * A constructed DynAny object supports operations that enable the creation of new DynAny * objects encapsulating access to the value of some constituent. * DynAny objects also support the copy operation for creating new DynAny objects. * A reference to the DynAnyFactory object is obtained by calling ORB.resolve_initial_references() * with the identifier parameter set to the string constant "DynAnyFactory". * <P>Dynamic interpretation of an any usually involves creating a DynAny object using create_dyn_any() * as the first step. Depending on the type of the any, the resulting DynAny object reference can be narrowed * to a DynFixed, DynStruct, DynSequence, DynArray, DynUnion, DynEnum, or DynValue object reference. * <P>Dynamic creation of an any involves creating a DynAny object using create_dyn_any_from_type_code(), * passing the TypeCode associated with the value to be created. The returned reference is narrowed to one of * the complex types, such as DynStruct, if appropriate. Then, the value can be initialized by means of * invoking operations on the resulting object. Finally, the to_any operation can be invoked * to create an any value from the constructed DynAny. */ public interface DynAnyFactoryOperations { /** * Creates a new DynAny object from an any value. * A copy of the TypeCode associated with the any value is assigned to the resulting DynAny object. * The value associated with the DynAny object is a copy of the value in the original any. * The current position of the created DynAny is set to zero if the passed value has components, * to -1 otherwise * * @exception InconsistentTypeCode if value has a TypeCode with a TCKind of tk_Principal, * tk_native, or tk_abstract_interface */ org.omg.DynamicAny.DynAny create_dyn_any (org.omg.CORBA.Any value) throws org.omg.DynamicAny.DynAnyFactoryPackage.InconsistentTypeCode; /** * Creates a DynAny from a TypeCode. Depending on the TypeCode, the created object may be of type DynAny, * or one of its derived types, such as DynStruct. The returned reference can be narrowed to the derived type. * In all cases, a DynAny constructed from a TypeCode has an initial default value. * The default values of basic types are: * <UL> * <LI>false for boolean * <LI>zero for numeric types * <LI>zero for types octet, char, and wchar * <LI>the empty string for string and wstring * <LI>null for object references * <LI>a type code with a TCKind value of tk_null for type codes * <LI>for any values, an any containing a type code with a TCKind value of tk_null type and no value * </UL> * For complex types, creation of the corresponding DynAny assigns a default value as follows: * <UL> * <LI>For DynSequence it sets the current position to -1 and creates an empty sequence. * <LI>For DynEnum it sets the current position to -1 and sets the value of the enumerator * to the first enumerator value indicated by the TypeCode. * <LI>For DynFixed it sets the current position to -1 and sets the value zero. * <LI>For DynStruct it sets the current position to -1 for empty exceptions * and to zero for all other TypeCodes. The members (if any) are (recursively) initialized * to their default values. * <LI>For DynArray sets the current position to zero and (recursively) initializes elements * to their default value. * <LI>For DynUnion sets the current position to zero. The discriminator value is set * to a value consistent with the first named member of the union. That member is activated and (recursively) * initialized to its default value. * <LI>For DynValue and DynValueBox it initializes to a null value. * </UL> */ org.omg.DynamicAny.DynAny create_dyn_any_from_type_code (org.omg.CORBA.TypeCode type) throws org.omg.DynamicAny.DynAnyFactoryPackage.InconsistentTypeCode; } // interface DynAnyFactoryOperations