Package org.apache.openjpa.jdbc.schema

Examples of org.apache.openjpa.jdbc.schema.PrimaryKey

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        SchemaGroup group = new SchemaGroup();
        Schema schema = group.addSchema(schemaName);

        Table table = schema.addTable(tableName);
        _pkColumn = addPrimaryKeyColumn(table);
        PrimaryKey pk = table.addPrimaryKey();
        pk.addColumn(_pkColumn);

        DBDictionary dict = _conf.getDBDictionaryInstance();
        _seqColumn = table.addColumn(dict.getValidColumnName
            (_seqColumnName, table));
        _seqColumn.setType(dict.getPreferredType(Types.BIGINT));
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    }

    @Override
    public PrimaryKey newPrimaryKey(ResultSet pkMeta)
        throws SQLException {
        PrimaryKey pk = super.newPrimaryKey(pkMeta);
        if (swapSchemaAndCatalog)
            pk.setSchemaIdentifier(fromDBName(pkMeta.getString("TABLE_CAT"), DBIdentifierType.CATALOG));
        return pk;
    }
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    @Override
    public boolean needsToCreateIndex(Index idx, Table table) {
       // Informix will automatically create a unique index for the
       // primary key, so don't create another index again
       PrimaryKey pk = table.getPrimaryKey();
       if (pk != null && idx.columnsMatch(pk.getColumns()))
           return false;
       return true;
    }
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    /**
     * Return whether the given foreign key is unique.
     */
    public boolean isUnique(ForeignKey fk) {
        PrimaryKey pk = fk.getTable().getPrimaryKey();
        if (pk != null && pk.columnsMatch(fk.getColumns()))
            return true;
        Index[] idx = fk.getTable().getIndexes();
        for (int i = 0; i < idx.length; i++)
            if (idx[i].isUnique() && idx[i].columnsMatch(fk.getColumns()))
                return true;
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     * If the given table has a single unique foreign key or a foreign
     * key that matches the primary key, return it. Else return null.
     */
    public ForeignKey getUniqueForeignKey(Table table) {
        ForeignKey[] fks = table.getForeignKeys();
        PrimaryKey pk = table.getPrimaryKey();
        ForeignKey unq = null;
        int count = 0;
        for (int i = 0; i < fks.length; i++) {
            if (pk != null && pk.columnsMatch(fks[i].getColumns()))
                return fks[i];
            if (!isUnique(fks[i]))
                continue;

            count++;
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                mapForeignKey(cls, fks[i], join, outer);

        // map any columns not controlled by foreign keys; also force primary
        // key cols to get mapped to simple fields even if the columns are
        // also foreign key columns
        PrimaryKey pk = (join != null) ? null : table.getPrimaryKey();
        boolean pkcol;
        Column[] cols = table.getColumns();
        for (int i = 0; i < cols.length; i++) {
            pkcol = pk != null && pk.containsColumn(cols[i]);
            if (pkcol && cls.getIdentityType() == ClassMapping.ID_DATASTORE)
                continue;
            if ((cls.getPCSuperclass() == null && pkcol)
                || !isForeignKeyColumn(cols[i]))
                mapColumn(cls, cols[i], join, outer);
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        // add an identity column if we do not already have one
        if (!hasIdentity)
            buf.append(", ").append(identityColumnName).
                append(" NUMERIC IDENTITY UNIQUE");

        PrimaryKey pk = table.getPrimaryKey();
        if (pk != null)
            buf.append(", ").append(getPrimaryKeyConstraintSQL(pk));

        Unique[] unqs = table.getUniques();
        String unqStr;
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                    _cols[i].setAutoAssigned(true);
        }

        // add primary key columns to table pk if logical
        field.mapPrimaryKey(adapt);
        PrimaryKey pk = field.getTable().getPrimaryKey();
        if (field.isPrimaryKey() && pk != null && (adapt || pk.isLogical()))
            for (int i = 0; i < _cols.length; i++)
                pk.addColumn(_cols[i]);

        // set joinable
        if (!field.getHandler().objectValueRequiresLoad(field))
            for (int i = 0; i < _cols.length; i++)
                field.getDefiningMapping().setJoinable(_cols[i], this);
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        cls.setJoinForeignKey(fk);
        cls.setPrimaryKeyColumns(pkCols);
        cls.setColumnIO(info.getColumnIO());

        // add a primary key if we don't have one already
        PrimaryKey pk = table.getPrimaryKey();
        if (pk == null) {
            String pkname = null;
            if (adapt)
                pkname = cls.getMappingRepository().getMappingDefaults().
                    getPrimaryKeyName(cls, table);
            pk = table.addPrimaryKey(pkname);
            pk.setLogical(!adapt);
            pk.setColumns(pkCols);
        }

        // map joinables
        Joinable join;
        Column[] cols;
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            RelationStrategies.mapRelationToUnmappedPC(field, field.getName(),
                adapt);

        field.setUseClassCriteria(criteria);
        field.mapPrimaryKey(adapt);
        PrimaryKey pk = field.getTable().getPrimaryKey();
        if (field.isPrimaryKey()) {
            Column[] cols = field.getColumns();
            if (pk != null && (adapt || pk.isLogical()))
                for (int i = 0; i < cols.length; i++)
                    pk.addColumn(cols[i]);
            for (int i = 0; i < cols.length; i++)
                field.getDefiningMapping().setJoinable(cols[i], this);
        }

        // map constraints after pk so we don't re-index / re-unique pk col
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Related Classes of org.apache.openjpa.jdbc.schema.PrimaryKey

  • org.apache.openjpa.jdbc.kernel.TableJDBCSeq
  • org.apache.openjpa.jdbc.meta.MappingInfo
  • org.apache.openjpa.jdbc.meta.ReverseMappingTool
  • org.apache.openjpa.jdbc.meta.strats.FullClassStrategy
  • org.apache.openjpa.jdbc.meta.strats.HandlerFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.PrimitiveFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.RelationFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.StringFieldStrategy
  • org.apache.openjpa.jdbc.meta.strats.VerticalClassStrategy
  • org.apache.openjpa.jdbc.sql.DBDictionary
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