Source for org.omg.CORBA.TypeCode

   1: /* TypeCode.java --
   2:    Copyright (C) 2005 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package org.omg.CORBA;
  40: 
  41: import org.omg.CORBA.TypeCodePackage.BadKind;
  42: import org.omg.CORBA.portable.IDLEntity;
  43: 
  44: import java.io.Serializable;
  45: 
  46: /**
  47:  * An information about a CORBA data type.
  48:  * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
  49:  */
  50: public abstract class TypeCode
  51:   implements IDLEntity, Serializable
  52: {
  53:   /**
  54:    * Use serialVersionUID for interoperability.
  55:    * Using the version 1.4 UID.
  56:    */
  57:   private static final long serialVersionUID = -6521025782489515676L;
  58: 
  59:   /**
  60:    * For value types that support inheritance this method returns the
  61:    * of the ancestor type code.
  62:    *
  63:    * @return the ancestor TypeCode.
  64:    *
  65:    * @throws BadKind for all typecodes except the value type typecodes.
  66:    */
  67:   public abstract TypeCode concrete_base_type()
  68:                                        throws BadKind;
  69: 
  70:   /**
  71:    * For sequences, arrays, aliases and value boxes, returns the IDL type for
  72:    * the members of the object.
  73:    * @return a TypeCode of the memebers of this type.
  74:    * @throws BadKind for types other than
  75:    * sequences, arrays, aliases and value boxes.
  76:    */
  77:   public abstract TypeCode content_type()
  78:                                  throws BadKind;
  79: 
  80:   /**
  81:    * For unions, returs the index of the default member.
  82:    * @return the index of the default member, -1 if there is
  83:    * no default member.
  84:    * @throws BadKind if this type is not
  85:    * a union.
  86:    */
  87:   public abstract int default_index()
  88:                              throws BadKind;
  89: 
  90:   /**
  91:    * Returs definition of member labels for untions
  92:    * @return a TypeCode, describing all non-default member labels.
  93:    * @throws BadKind if this type is not a
  94:    * union.
  95:    */
  96:   public abstract TypeCode discriminator_type()
  97:                                        throws BadKind;
  98: 
  99:   /**
 100:    * Test two types for equality.
 101:    *
 102:    * @param other the other type to compere with
 103:    * @return true if the types are interchangeable.
 104:    */
 105:   public abstract boolean equal(TypeCode other);
 106: 
 107:   /**
 108:    * Following the current 1.4 API specifcation, this should just throw
 109:    * NO_IMPLEMENT.
 110:    * @throws org.omg.CORBA.NO_IMPLEMENT, always.
 111:    */
 112:   public abstract boolean equivalent(TypeCode other);
 113: 
 114:   /**
 115:    * For the fixed type, returns the number of digits.
 116:    * @return the number of digits for the fixed type
 117:    * @throws BadKind if this is not a fixed
 118:    * type.
 119:    */
 120:   public abstract short fixed_digits()
 121:                               throws BadKind;
 122: 
 123:   /**
 124:    * Returns the scale for the fixed type. The returned value can be either
 125:    * positive (the number of digits to the right of the decimal point) or
 126:    * negative (adds zeros to the left of the decimal point).
 127:    * @return the scale.
 128:    * @throws BadKind if this is not a fixed
 129:    * type.
 130:    */
 131:   public abstract short fixed_scale()
 132:                              throws BadKind;
 133: 
 134:   /**
 135:    * Returns a version of this instance without the optional memeber and
 136:    * member name fields.
 137:    * @return the truncated version.
 138:    */
 139:   public abstract TypeCode get_compact_typecode();
 140: 
 141:   /**
 142:    * Returns the RepositoryId globally identifying the type, defined by
 143:    * this TypeCode.
 144:    * @return tje RepositoryId. In some cases, it may be an empty string.
 145:    * @throws BadKind if the type is other than
 146:    * reference, structure, union, enumeration, alias, exception, valuetype,
 147:    * boxed valuetype and also native and abstract interfaces.
 148:    */
 149:   public abstract String id()
 150:                      throws BadKind;
 151: 
 152:   /**
 153:    * Return the kind of this type code object.
 154:    * @return one of the <code>TCKind.t_..</code> fields.
 155:    */
 156:   public abstract TCKind kind();
 157: 
 158:   /**
 159:    * Returns the number of elements in the type. For arrays, this
 160:    * method returns the length of the array. For strings and sequences,
 161:    * it returns the bound of the type, zero indicating the unbounded
 162:    * type.
 163:    *
 164:    * @return length or bound
 165:    *
 166:    * @throws BadKind for types other than
 167:    * string, sequence and array.
 168:    */
 169:   public abstract int length()
 170:                       throws BadKind;
 171: 
 172:   /**
 173:    * Returns the number of type memebers.
 174:    *
 175:    * @return the number of memebers
 176:    * @throws BadKind for types other than
 177:    * structure, union, enumeration or exception.
 178:    */
 179:   public abstract int member_count()
 180:                             throws BadKind;
 181: 
 182:   /**
 183:    * Retrieves the label of the union member at the given index.
 184:    * For the default member, this label is the zero octet.
 185:    *
 186:    * @param index the index of the union memeber.
 187:    *
 188:    * @return the label
 189:    *
 190:    * @throws BadKind if this is not a union
 191:    * type.
 192:    * @throws org.omg.CORBA.TypeCodePackage.Bounds if the index is out of
 193:    * valid bounds.
 194:    */
 195:   public abstract Any member_label(int index)
 196:                             throws BadKind,
 197:                                    org.omg.CORBA.TypeCodePackage.Bounds;
 198: 
 199:   /**
 200:    * Retrieves the simple name of the member identified by the given index.
 201:    *
 202:    * @param index the index of the memeber.
 203:    *
 204:    * @return the member name that in some cases can be an empty string.
 205:    *
 206:    * @throws BadKind for types other than
 207:    * structure, union or enumeration.
 208:    * @throws org.omg.CORBA.TypeCodePackage.Bounds if the index is out of
 209:    * valid bounds.
 210:    */
 211:   public abstract String member_name(int index)
 212:                               throws BadKind,
 213:                                      org.omg.CORBA.TypeCodePackage.Bounds;
 214: 
 215:   /**
 216:    * Retrieves the member type of the member identified by the given index.
 217:    *
 218:    * @param index the index of the memeber.
 219:    *
 220:    * @return the member type.
 221:    *
 222:    * @throws BadKind for types other than
 223:    * structure, union, enumeration or exception.
 224:    * @throws org.omg.CORBA.TypeCodePackage.Bounds if the index is out of
 225:    * valid bounds.
 226:    */
 227:   public abstract TypeCode member_type(int index)
 228:                                 throws BadKind,
 229:                                        org.omg.CORBA.TypeCodePackage.Bounds;
 230: 
 231:   /**
 232:    * Returns the visibility scope of the member at the given index.
 233:    * This operation can only be invoked on non-boxed value types.
 234:    *
 235:    * @param index the index of the member
 236:    *
 237:    * @return either PRIVATE_MEMBER.value or PUBLIC_MEMBER.value
 238:    *
 239:    * @throws BadKind if this is not a non boxed
 240:    * value type.
 241:    *
 242:    * @throws org.omg.CORBA.TypeCodePackage.Bounds if the index is out of
 243:    * valid bounds.
 244:    */
 245:   public abstract short member_visibility(int index)
 246:                                    throws BadKind,
 247:                                           org.omg.CORBA.TypeCodePackage.Bounds;
 248: 
 249:   /**
 250:    * Retrieves the simple name identifying this TypeCode object
 251:    * within its enclosing scope.
 252:    * @return the name, can be an empty string.
 253:    * @throws BadKind for typer other than
 254:    * reference, structure, union, enumeration, alias, exception,
 255:    * valuetype, boxed valuetype, native, and abstract interface
 256:    */
 257:   public abstract String name()
 258:                        throws BadKind;
 259: 
 260:   /**
 261:    * Returns a constant indicating the modifier of the value type.
 262:    *
 263:    * @return one of the following constants:
 264:    * VM_NONE.value, VM_ABSTRACT.value, VM_CUSTOM.value, or
 265:    * VM_TRUNCATABLE.value,
 266:    *
 267:    * @throws BadKind for all types other than value type.
 268:    */
 269:   public abstract short type_modifier()
 270:                                throws BadKind;