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Hibernate's core ORM functionality
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.hql.internal.ast;
import java.io.Reader;
import org.hibernate.QueryException;
import org.hibernate.hql.internal.antlr.HqlBaseLexer;
import antlr.Token;
/**
* Custom lexer for the HQL grammar. Extends the base lexer generated by ANTLR
* in order to keep the grammar source file clean.
*/
class HqlLexer extends HqlBaseLexer {
private boolean possibleID;
public HqlLexer(Reader in) {
super( in );
}
@Override
public void setTokenObjectClass(String cl) {
this.tokenObjectClass = HqlToken.class;
}
@Override
protected void setPossibleID(boolean possibleID) {
this.possibleID = possibleID;
}
@Override
protected Token makeToken(int i) {
HqlToken token = (HqlToken) super.makeToken( i );
token.setPossibleID( possibleID );
possibleID = false;
return token;
}
@Override
public void panic() {
//overriden to avoid System.exit
panic( "CharScanner: panic" );
}
@Override
public void panic(String s) {
//overriden to avoid System.exit
throw new QueryException( s );
}
}