Interface ITokenHandle

Namespace

gudusoft.gsqlparser

Assembly

gudusoft.gsqlparser.dll

use this interface if you like to change token properties generated by lexer before send to parser.

package test.interfaceDemo;

import gudusoft.gsqlparser.*;
import junit.framework.TestCase;

class myTokenHandle implements ITokenHandle{
    public boolean processToken(TSourceToken st){

        if (st.toString().equalsIgnoreCase("limit")){
            st.tokencode = TBaseType.cmtslashstar;//treat this token as a comment
        }
           return true;
    }
}

public class testITokenHandle extends TestCase {

    public void test1(){
        TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmysql);
        sqlparser.sqltext = "select * from dual limit";
        sqlparser.setTokenHandle(new myTokenHandle());

        assertTrue(sqlparser.parse() == 0);
    }

}

public interface ITokenHandle

Methods

processToken(TSourceToken)

Source token of input SQL query during parsing.

bool processToken(TSourceToken st)

Parameters

st TSourceToken

current processing token

Returns

bool

true, continue processing. false, break process rest tokens.