org.objectstyle.cayenne.dba.ingres.IngresPkGenerator Maven / Gradle / Ivy
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/* ====================================================================
*
* The ObjectStyle Group Software License, version 1.1
* ObjectStyle Group - http://objectstyle.org/
*
* Copyright (c) 2002-2004, Andrei (Andrus) Adamchik and individual authors
* of the software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution, if any,
* must include the following acknowlegement:
* "This product includes software developed by independent contributors
* and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
* or promote products derived from this software without prior written
* permission. For written permission, email
* "andrus at objectstyle dot org".
*
* 5. Products derived from this software may not be called "ObjectStyle"
* or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
* names without prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 THE OBJECTSTYLE GROUP OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals and hosted on ObjectStyle Group web site. For more
* information on the ObjectStyle Group, please see
* dbEntity. Executed SQL looks like this:
*
*
* SELECT nextval(pk_table_name)
*
*/
protected int pkFromDatabase(DataNode node, DbEntity ent) throws Exception {
DbKeyGenerator pkGenerator = ent.getPrimaryKeyGenerator();
String pkGeneratingSequenceName;
if (pkGenerator != null
&& DbKeyGenerator.ORACLE_TYPE.equals(pkGenerator.getGeneratorType())
&& pkGenerator.getGeneratorName() != null)
pkGeneratingSequenceName = pkGenerator.getGeneratorName();
else
pkGeneratingSequenceName = sequenceName(ent);
Connection con = node.getDataSource().getConnection();
try {
Statement st = con.createStatement();
try {
String sql = "SELECT " + pkGeneratingSequenceName + ".nextval";
QueryLogger.logQuery(sql, Collections.EMPTY_LIST);
ResultSet rs = st.executeQuery(sql);
try {
// Object pk = null;
if (!rs.next()) {
throw new CayenneRuntimeException(
"Error generating pk for DbEntity " + ent.getName());
}
return rs.getInt(1);
}
finally {
rs.close();
}
}
finally {
st.close();
}
}
finally {
con.close();
}
}
protected List getExistingSequences(DataNode node) throws SQLException {
// check existing sequences
Connection connection = node.getDataSource().getConnection();
try {
Statement select = connection.createStatement();
try {
String sql = "select seq_name from iisequences where seq_owner != 'DBA'";
QueryLogger.logQuery(sql, Collections.EMPTY_LIST);
ResultSet rs = select.executeQuery(sql);
try {
List sequenceList = new ArrayList();
while (rs.next()) {
String name = rs.getString(1);
if(name != null) {
sequenceList.add(name.trim());
}
}
return sequenceList;
}
finally {
rs.close();
}
}
finally {
select.close();
}
}
finally {
connection.close();
}
}
}