/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program is distributed
* in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.tools.db;
import java.util.Collection;
import java.util.Iterator;
import java.util.Vector;
import java.util.List;
import org.hyperic.util.StringCollection;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
class Constraint {
private Table m_table;
private ConstraintImpl m_constraint;
private DBSetup m_parent;
protected Constraint (Node node, Table table, int dbtype) throws SAXException {
m_parent = table.getDBSetup();
if ( !Constraint.isConstraint(node) ) throw new SAXException("node is not an CONSTRAINT.");
String cname = null;
NamedNodeMap map = node.getAttributes();
for (int iAttr=0; iAttr<map.getLength(); iAttr++) {
Node nodeMap = map.item(iAttr);
String strName = nodeMap.getNodeName();
String strValue = nodeMap.getNodeValue();
if ( strName.equalsIgnoreCase("name") ) {
cname = strValue;
}
}
///////////////////////////////////////////////////////////////////
// Get the columns references in the constraint. This is not currently
// verified to ensure they are valid.
NodeList listFields = node.getChildNodes();
int numFields = listFields.getLength();
for(int iField=0; iField<numFields; iField++) {
node = listFields.item(iField);
if ( node.getNodeName().equalsIgnoreCase("primarykey") ) {
m_constraint = new ConstraintImpl_PK(cname, dbtype, node);
} else if ( node.getNodeName().equalsIgnoreCase("foreignkey") ) {
m_constraint = new ConstraintImpl_FK(cname, this, dbtype, node);
}
}
this.m_table = table;
}
protected String getCreateString () {
return m_constraint.getCreateString();
}
protected Table getTable () {
return m_table;
}
protected void getPostCreateCommands ( List postCreateCommands ) {
m_constraint.getPostCreateCommands(postCreateCommands);
}
protected static Collection getConstraints(Table table, Node nodeTable, int dbtype) {
String strTableName = nodeTable.getNodeName();
NodeList listIdx = nodeTable.getChildNodes();
Collection colResult = new Vector();
for(int i=0; i<listIdx.getLength(); i++) {
Node node = listIdx.item(i);
if ( Constraint.isConstraint(node) ) {
try {
colResult.add(new Constraint(node, table, dbtype));
} catch(SAXException e) {}
}
}
return colResult;
}
protected static boolean isConstraint(Node node)
{
return node.getNodeName().equalsIgnoreCase("constraint");
}
}