common/subtree/ReusableAntlrSubtreeSpecificationParser.java

/*
 *   Copyright 2004 The Apache Software Foundation
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 */


package org.apache.ldap.common.subtree;


import antlr.TokenStream;


/**
 * A reusable parser class extended from antlr generated parser for an LDAP
 * subtree specification as defined by <a href="http://www.faqs.org/rfcs/rfc3672.html">
 * RFC 3672</a>.  This class enables the reuse of the antlr parser without having to
 * recreate the it every time as stated in 
 * <a href="http://www.antlr.org:8080/pipermail/antlr-interest/2003-April/003631.html">
 * a Antlr Interest Group mail</a> .
 *
 * @see <a href="http://www.faqs.org/rfcs/rfc3672.html">RFC 3672</a>
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 * @version $Rev$
 */
class ReusableAntlrSubtreeSpecificationParser extends AntlrSubtreeSpecificationParser
{
    /**
     * Creates a ReusableAntlrSubtreeSpecificationParser instance.
     */
    public ReusableAntlrSubtreeSpecificationParser( TokenStream lexer )
    {
        super( lexer );
    }

    
    /**
     * Resets the state of an antlr parser.
     */
    public void resetState()
    {
        // no set method for this protected field.
        this.traceDepth = 0;
        
        this.getInputState().reset();
    }
}
1	/*
2	* Copyright 2004 The Apache Software Foundation
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*
16	*/
17
18
19	package org.apache.ldap.common.subtree;
20
21
22	import antlr.TokenStream;
23
24
25	/**
26	* A reusable parser class extended from antlr generated parser for an LDAP
27	* subtree specification as defined by <a href="http://www.faqs.org/rfcs/rfc3672.html">
28	* RFC 3672</a>. This class enables the reuse of the antlr parser without having to
29	* recreate the it every time as stated in
30	* <a href="http://www.antlr.org:8080/pipermail/antlr-interest/2003-April/003631.html">
31	* a Antlr Interest Group mail</a> .
32	*
33	* @see <a href="http://www.faqs.org/rfcs/rfc3672.html">RFC 3672</a>
34	* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
35	* @version $Rev$
36	*/
37	class ReusableAntlrSubtreeSpecificationParser extends AntlrSubtreeSpecificationParser
38	{
39	/**
40	* Creates a ReusableAntlrSubtreeSpecificationParser instance.
41	*/
42	public ReusableAntlrSubtreeSpecificationParser( TokenStream lexer )
43	{
44	super( lexer );
45	}
46
47
48	/**
49	* Resets the state of an antlr parser.
50	*/
51	public void resetState()
52	{
53	// no set method for this protected field.
54	this.traceDepth = 0;
55
56	this.getInputState().reset();
57	}
58	}