| /* Copyright (c) 2001-2010, The HSQL Development Group |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * Neither the name of the HSQL Development Group nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, |
| * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| |
| package org.hsqldb.util; |
| |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.Vector; |
| |
| /** |
| * Helper class for transferring a result set |
| * |
| * @author Nicolas BAZIN |
| * @version 1.7.0 |
| */ |
| class TransferResultSet { |
| |
| Vector vRows = null; |
| int iRowIdx; |
| int iMaxRowIdx; |
| int iColumnCount; |
| String[] sColumnNames = null; |
| int[] iColumnTypes = null; |
| |
| TransferResultSet(ResultSet r) { |
| |
| iRowIdx = 0; |
| iMaxRowIdx = 0; |
| iColumnCount = 0; |
| vRows = new Vector(); |
| |
| try { |
| while (r.next()) { |
| if (sColumnNames == null) { |
| iColumnCount = r.getMetaData().getColumnCount(); |
| sColumnNames = new String[iColumnCount + 1]; |
| iColumnTypes = new int[iColumnCount + 1]; |
| |
| for (int Idx = 0; Idx < iColumnCount; Idx++) { |
| sColumnNames[Idx + 1] = |
| r.getMetaData().getColumnName(Idx + 1); |
| iColumnTypes[Idx + 1] = |
| r.getMetaData().getColumnType(Idx + 1); |
| } |
| |
| vRows.addElement(null); |
| } |
| |
| iMaxRowIdx++; |
| |
| Object[] Values = new Object[iColumnCount + 1]; |
| |
| for (int Idx = 0; Idx < iColumnCount; Idx++) { |
| Values[Idx + 1] = r.getObject(Idx + 1); |
| } |
| |
| vRows.addElement(Values); |
| } |
| } catch (SQLException SQLE) { |
| iRowIdx = 0; |
| iMaxRowIdx = 0; |
| iColumnCount = 0; |
| vRows = new Vector(); |
| } |
| } |
| |
| TransferResultSet() { |
| |
| iRowIdx = 0; |
| iMaxRowIdx = 0; |
| iColumnCount = 0; |
| vRows = new Vector(); |
| } |
| |
| void addRow(String[] Name, int[] type, Object[] Values, |
| int nbColumns) throws Exception { |
| |
| if ((Name.length != type.length) || (Name.length != Values.length) |
| || (Name.length != (nbColumns + 1))) { |
| throw new Exception("Size of parameter incoherent"); |
| } |
| |
| if (sColumnNames == null) { |
| iColumnCount = nbColumns; |
| sColumnNames = Name; |
| iColumnTypes = type; |
| |
| vRows.addElement(null); |
| } |
| |
| if ((iMaxRowIdx > 0) && (this.getColumnCount() != nbColumns)) { |
| throw new Exception("Wrong number of columns: " |
| + this.getColumnCount() |
| + " column is expected"); |
| } |
| |
| iMaxRowIdx++; |
| |
| vRows.addElement(Values); |
| } |
| |
| boolean next() { |
| |
| iRowIdx++; |
| |
| return ((iRowIdx <= iMaxRowIdx) && (iMaxRowIdx > 0)); |
| } |
| |
| String getColumnName(int columnIdx) { |
| |
| if ((iMaxRowIdx <= 0) || (iMaxRowIdx < iRowIdx)) { |
| return null; |
| } |
| |
| return sColumnNames[columnIdx]; |
| } |
| |
| int getColumnCount() { |
| |
| if ((iMaxRowIdx <= 0) || (iMaxRowIdx < iRowIdx)) { |
| return 0; |
| } |
| |
| return iColumnCount; |
| } |
| |
| int getColumnType(int columnIdx) { |
| |
| if ((iMaxRowIdx <= 0) || (iMaxRowIdx < iRowIdx)) { |
| return 0; |
| } |
| |
| return iColumnTypes[columnIdx]; |
| } |
| |
| Object getObject(int columnIdx) { |
| |
| if ((iMaxRowIdx <= 0) || (iMaxRowIdx < iRowIdx)) { |
| return null; |
| } |
| |
| return ((Object[]) vRows.elementAt(iRowIdx))[columnIdx]; |
| } |
| } |