/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.directory.studio.ldapbrowser.core.model.filter.parser;
/**
* The LdapFilterToken is used to exchange tokens from the scanner to the parser.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class LdapFilterToken implements Comparable<LdapFilterToken>
{
/** The token identifier for a new filter */
public static final int NEW = Integer.MIN_VALUE;
/** The token identifier for an error token */
public static final int ERROR = -2;
/** The token identifier for end of file */
public static final int EOF = -1;
/** The token identifier for an unknown token */
public static final int UNKNOWN = 0;
/** The token identifier for a whitespace */
public static final int WHITESPACE = 1;
/** The token identifier for the left parenthesis ( */
public static final int LPAR = 11;
/** The token identifier for the right parenthesis ) */
public static final int RPAR = 12;
/** The token identifier for the and operator & */
public static final int AND = 21;
/** The token identifier for the or operator | */
public static final int OR = 22;
/** The token identifier for the not operator ! */
public static final int NOT = 23;
/** The token identifier for the attribute = */
public static final int ATTRIBUTE = 31;
/** The token identifier for the equal filter type = */
public static final int EQUAL = 41;
/** The token identifier for the approx filter type ~= */
public static final int APROX = 42;
/** The token identifier for the greater or equal filter type >= */
public static final int GREATER = 43;
/** The token identifier for the less or equal filter type <= */
public static final int LESS = 44;
/** The token identifier for the present filter type =* */
public static final int PRESENT = 45;
/** The token identifier for the substring filter type =* */
public static final int SUBSTRING = 46;
/** The token identifier for a value. */
public static final int VALUE = 51;
/** The token identifier for the asterisk. */
public static final int ASTERISK = 52;
/** The token identifier for the attribute type in extensible filters. */
public static final int EXTENSIBLE_ATTRIBUTE = 61;
/** The token identifier for the colon before the Dn flag in extensible filters. */
public static final int EXTENSIBLE_DNATTR_COLON = 62;
/** The token identifier for the Dn flag in extensible filters. */
public static final int EXTENSIBLE_DNATTR = 63;
/** The token identifier for the colon before the matching rule OID in extensible filters. */
public static final int EXTENSIBLE_MATCHINGRULEOID_COLON = 64;
/** The token identifier for the matching rule OID in extensible filters. */
public static final int EXTENSIBLE_MATCHINGRULEOID = 65;
/** The token identifier for the colon before the equals in extensible filters. */
public static final int EXTENSIBLE_EQUALS_COLON = 66;
/** The offset. */
private int offset;
/** The type. */
private int type;
/** The value. */
private String value;
/**
* Creates a new instance of LdapFilterToken.
*
* @param type the type
* @param value the value
* @param offset the offset
*/
public LdapFilterToken( int type, String value, int offset )
{
this.type = type;
this.value = value;
this.offset = offset;
}
/**
* Returns the start position of the token in the original filter
*
* @return the start positon of the token
*/
public int getOffset()
{
return offset;
}
/**
* Returns the length of the token in the original filter
*
* @return the length of the token
*/
public int getLength()
{
return value.length();
}
/**
* Gets the token type.
*
* @return the token type
*/
public int getType()
{
return type;
}
/**
* Gets the value of the token in the original filter.
*
* @return the value of the token
*/
public String getValue()
{
return value;
}
/**
* @see java.lang.Object#toString()
*/
public String toString()
{
return "(" + offset + ") " + "(" + type + ") " + value; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
/**
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
public int compareTo( LdapFilterToken o )
{
if ( o instanceof LdapFilterToken )
{
LdapFilterToken token = ( LdapFilterToken ) o;
return this.offset - token.offset;
}
else
{
throw new ClassCastException( "Not instanceof LapFilterToken: " + o.getClass().getName() ); //$NON-NLS-1$
}
}
}