Examples of org.jpox.store.rdbms.typeinfo.ForeignKeyInfo

org.jpox.store.rdbms.typeinfo.ForeignKeyInfo
Represents the metadata of a specific foreign key column. This class is basically a data structure that makes accessing the JDBC foreign key metadata easier. Each of the items returned by {@link java.sql.DatabaseMetaData#getImportedKeys(String,String,String)} or{@link java.sql.DatabaseMetaData#getExportedKeys(String,String,String)}is represented by a public field in this class. Subclasses of ForeignKeyInfo can be created on a per-DBMS basis to supply missing metadata or correct faulty metadata obtained from that DBMS's JDBC driver(s). @see org.jpox.store.rdbms.RDBMSStoreHelper#getForeignKeyInfoForTable @see org.jpox.store.rdbms.adapter.RDBMSAdapter#newForeignKeyInfo @version $Revision: 1.3 $

        ResultSet rs = conn.getMetaData().getImportedKeys(catalogName, schemaName, tableName);
        try
        {
            while (rs.next())
            {
                ForeignKeyInfo fki = dba.newForeignKeyInfo(rs);


                // Some RDBMS (e.g PostgreSQL) returns duplicate rows from getImportedKeys().
                if (!fk_cols.contains(fki))
                {
                    fk_cols.add(fki);

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     * @param rs The result set returned from DatabaseMetaData.get??portedKeys()
     * @return The foreign key info 
     */
    public ForeignKeyInfo newForeignKeyInfo(ResultSet rs)
    {
        return new ForeignKeyInfo(rs);
    }

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         */
        HashSet fkNames = new HashSet();
        Iterator i = RDBMSStoreHelper.getForeignKeyInfoForTable(storeMgr, this, conn).iterator();
        while (i.hasNext())
        {
            ForeignKeyInfo fki = (ForeignKeyInfo) i.next();
            /*
             * Legally, JDBC drivers are allowed to return null names for
             * foreign keys. If they do, we simply have to skip DROP CONSTRAINT.
             */
            if (fki.fkName != null)

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        Iterator i = RDBMSStoreHelper.getForeignKeyInfoForTable(storeMgr, this, conn).iterator();
        while (i.hasNext())
        {
            RDBMSIdentifierFactory idFactory = (RDBMSIdentifierFactory)storeMgr.getIdentifierFactory();
            DatastoreIdentifier fkName;
            ForeignKeyInfo fki = (ForeignKeyInfo) i.next();
            if (fki.fkName == null)
            {
                fkName = idFactory.newForeignKeyIdentifier(this, foreignKeysByName.size());
            }
            else

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Related Classes of org.jpox.store.rdbms.typeinfo.ForeignKeyInfo

org.jpox.store.rdbms.adapter.DatabaseAdapter

org.jpox.store.rdbms.RDBMSStoreHelper

org.jpox.store.rdbms.table.TableImpl

org.jpox.exceptions.JPOXDataStoreException

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