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21 package org.jacorb.collection;
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23
24
25 import org.jacorb.util.ObjectUtil;
26
27 import org.omg.CosCollection.*;
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29
30
31 public class SortedRelationFactoryImpl
32
33 extends SortedRelationFactoryPOA implements IteratorFactory
34
35 {
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37
38
39 public final static String  IMPL_CATEGORY = "ArrayBased";
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41 private org.omg.PortableServer.POA poa;
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43
44
45 public SortedRelationFactoryImpl( org.omg.PortableServer.POA poa )
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47 {
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49 this.poa = poa;
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51 try {
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53 poa.servant_to_reference(this);
54
55 } catch( Exception e ){
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57 System.out.println( "Internal error: Can not activate factory" );
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59 e.printStackTrace();
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61 throw new org.omg.CORBA.INTERNAL ();
62
63 }
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65 };
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67
68
69 public SortedRelation create( Operations ops, int expected_size ){
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71 return create( ops, expected_size, poa );
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73 };
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75
76
77 public SortedRelation create( String ops_class, int expected_size )
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79 {
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81 OperationsOperations ops = null;
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83 try {
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85 Class operation_class = ObjectUtil.classForName( ops_class );
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87 ops = (OperationsOperations)operation_class.newInstance();
88
89 } catch ( Exception e ){
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91 System.out.println( "Internal error: Can not instantiate object of class \""+ops_class+"\"" );
92
93 throw new org.omg.CORBA.INTERNAL ();
94
95 };
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97 return create( ops, expected_size, poa );
98
99 };
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101 public SortedRelation create( OperationsOperations ops, int expected_size, org.omg.PortableServer.POA poa ){
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103 SortedRelationImpl collection = new SortedRelationImpl( ops, poa, this, expected_size );
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105 SortedRelation collection_ref = null;
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107 SortedRelationPOATie srvnt = new SortedRelationPOATie( collection );
108
109 try {
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111 collection_ref = SortedRelationHelper.narrow(poa.servant_to_reference(srvnt));
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113 collection.set_servant( srvnt );
114
115 } catch(Exception e) {
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117 System.out.println("Internal error: Can not Activate collection");
118
119 e.printStackTrace();
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121 throw new org.omg.CORBA.INTERNAL ();
122
123 }
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125 return collection_ref;
126
127 };
128
129 public Collection generic_create( NVPair[] parameters) throws ParameterInvalid{
130
131 NVPairManager pm = new NVPairManager( parameters );
132
133 String collection_interface = pm.find_string_param( CollectionService.COL_INTRF );
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135 String implementation_interface = pm.find_string_param( CollectionService.IMPL_INTRF );
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137 String implementation_category = pm.find_string_param( CollectionService.IMPL_CAT );
138
139 if( implementation_category != null && !implementation_category.equals( IMPL_CATEGORY ) ) {
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141 throw new ParameterInvalid( pm.find_param_idx( CollectionService.IMPL_CAT ), "CollectionFactory : not support implementation category "+implementation_category );
142
143 }
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145 Integer size = pm.find_ulong_param( CollectionService.EXP_SIZE );
146
147 if ( size == null ) {
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149 size = new Integer (10);
150
151 }
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153 Operations ops = pm.find_operations_param( CollectionService.OPERATIONS );
154
155 if ( ops == null ) {
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157 String ops_class = pm.find_string_param( CollectionService.OPERATIONS_CLASS );
158
159 if( ops_class == null ){
160
161 throw new ParameterInvalid( pm.find_param_idx(CollectionService.OPERATIONS), "CollectionFactory: OPERATION object not defined" );
162
163 }
164
165 return create( ops_class, size.intValue() );
166
167 } else {
168
169 return create( ops, size.intValue() );
170
171 }
172
173 };
174
175 public PositionalIteratorImpl create_iterator( CollectionImpl collection, boolean read_only ){
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177 return create_iterator( collection, read_only, false );
178
179 };
180
181 public PositionalIteratorImpl create_iterator( CollectionImpl collection, boolean read_only, boolean reverse ){
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183 return new EqualityKeySortedIteratorImpl( (SortedRelationImpl)collection, read_only, reverse );
184
185 };
186
187 }
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