001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019package lucee.runtime.db; 020 021import java.util.HashSet; 022import java.util.Set; 023 024import lucee.runtime.sql.SQLParserException; 025import lucee.runtime.sql.SelectParser; 026import lucee.runtime.sql.Selects; 027import lucee.runtime.sql.exp.Column; 028 029public class HSQLUtil2 { 030 031 private Selects selects; 032 033 public HSQLUtil2(SQL sql) throws SQLParserException { 034 selects = new SelectParser().parse(sql.getSQLString()); 035 } 036 037 public HSQLUtil2(Selects selects) { 038 this.selects = selects; 039 } 040 041 public boolean isUnion() { 042 return selects.getSelects().length>1; 043 } 044 045 public Set<String> getInvokedTables() { 046 HashSet<String> set=new HashSet<String>(); 047 Column[] tables = selects.getTables(); 048 for(int i=0;i<tables.length;i++) { 049 set.add(tables[i].getFullName()); 050 } 051 return set; 052 } 053 054}