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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.classic;
import java.util.BitSet;
import java.util.StringTokenizer;
import org.hibernate.QueryException;
import org.hibernate.internal.util.StringHelper;
public final class ParserHelper {
public static final String HQL_VARIABLE_PREFIX = ":";
public static final String HQL_SEPARATORS = " \n\r\f\t,()=<>&|+-=/*'^![]#~\\";
public static final BitSet HQL_SEPARATORS_BITSET = new BitSet();
static {
for ( int i = 0; i < HQL_SEPARATORS.length(); i++ ) {
HQL_SEPARATORS_BITSET.set( HQL_SEPARATORS.charAt( i ) );
}
}
//NOTICE: no " or . since they are part of (compound) identifiers
public static final String PATH_SEPARATORS = ".";
public static boolean isWhitespace(String str) {
return StringHelper.WHITESPACE.contains( str );
}
private ParserHelper() {
//cannot instantiate
}
public static void parse(Parser p, String text, String seperators, QueryTranslatorImpl q) throws QueryException {
StringTokenizer tokens = new StringTokenizer( text, seperators, true );
p.start( q );
while ( tokens.hasMoreElements() ) {
p.token( tokens.nextToken(), q );
}
p.end( q );
}
}