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1
50 package org.apache.avalon.excalibur.naming;
51
52 import java.util.NoSuchElementException  ;
53
54 import javax.naming.Context ;
55 import javax.naming.Name ;
56 import javax.naming.NamingEnumeration ;
57 import javax.naming.NamingException ;
58
59
66 public abstract class AbstractNamingEnumeration
67 implements NamingEnumeration
68 {
69 protected Context m_owner;
70 protected Namespace m_namespace;
71
72 public AbstractNamingEnumeration( final Context owner, final Namespace namespace )
73 {
74 m_owner = owner;
75 m_namespace = namespace;
76 }
77
78 public boolean hasMore()
79 throws NamingException
80 {
81 return hasMoreElements();
82 }
83
84 public Object nextElement()
85 {
86 try
87 {
88 return next();
89 }
90 catch( final NamingException ne )
91 {
92 throw new NoSuchElementException ( ne.toString() );
93 }
94 }
95
96 protected Object resolve( final String name, final Object object )
97 throws NamingException
98 {
99 try
101 {
102 final Name atom = m_owner.getNameParser( name ).parse( name );
103 return m_namespace.
104 getObjectInstance( object, atom, m_owner, m_owner.getEnvironment() );
105 }
106 catch( final Exception e )
107 {
108 final NamingException ne = new NamingException ( "getObjectInstance failed" );
109 ne.setRootCause( e );
110 throw ne;
111 }
112 }
113
114 public void close()
115 {
116 m_namespace = null;
117 m_owner = null;
118 }
119 }
120 |
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