Package org.apache.ddlutils.model

Examples of org.apache.ddlutils.model.ForeignKey

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        {
            ResultSet fkRs = stmt.executeQuery(query.toString());

            while (fkRs.next())
            {
                ForeignKey fk            = new ForeignKey(fkRs.getString(1));
                int        localTableId  = fkRs.getInt(2);
                int        remoteTableId = fkRs.getInt(4);

                fk.setForeignTableName(fkRs.getString(3));
                for (int idx = 0; idx < 16; idx++)
                {
                    short     fkColIdx = fkRs.getShort(5 + idx + idx);
                    short     pkColIdx = fkRs.getShort(6 + idx + idx);
                    Reference ref      = new Reference();

                    if (fkColIdx == 0)
                    {
                        break;
                    }

                    prepStmt.setInt(1, localTableId);
                    prepStmt.setShort(2, fkColIdx);

                    ResultSet colRs = prepStmt.executeQuery();

                    if (colRs.next())
                    {
                        ref.setLocalColumnName(colRs.getString(1));
                    }
                    colRs.close();

                    prepStmt.setInt(1, remoteTableId);
                    prepStmt.setShort(2, pkColIdx);

                    colRs = prepStmt.executeQuery();

                    if (colRs.next())
                    {
                        ref.setForeignColumnName(colRs.getString(1));
                    }
                    colRs.close();

                    fk.addReference(ref);
                }
                result.add(fk);
            }

            fkRs.close();
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        Table     sourceTable   = currentModel.findTable(tableName, caseSensitive);
        Table     targetTable   = desiredModel.findTable(tableName, caseSensitive);

        for (int idx = 0; idx < targetTable.getForeignKeyCount(); idx++)
        {
            ForeignKey targetFK = targetTable.getForeignKey(idx);
            ForeignKey sourceFK = sourceTable.findForeignKey(targetFK, caseSensitive);

            if (sourceFK != null)
            {
                unchangedFKs.add(targetFK);
            }
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            }
            if ((sourceTable != null) && !namesOfKnownChangedTables.contains(name))
            {
                for (int fkIdx = 0; fkIdx < targetTable.getForeignKeyCount(); fkIdx++)
                {
                    ForeignKey targetFk = targetTable.getForeignKey(fkIdx);
                    ForeignKey sourceFk = sourceTable.findForeignKey(targetFk, caseSensitive);
                    String     refName  = targetFk.getForeignTableName();

                    if (!caseSensitive)
                    {
                        refName = refName.toUpperCase();
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        Reference[] refs        = fk.getReferences();
        ArrayList   curRefs     = new ArrayList();

        for (int fkIdx = 0; fkIdx < table.getForeignKeyCount(); fkIdx++)
        {
            ForeignKey curFk          = table.getForeignKey(fkIdx);
            boolean    checkCurFkName = checkFkName &&
                                        (curFk.getName() != null) && (curFk.getName().length() > 0);

            if ((!checkCurFkName || areEqual(fk.getName(), curFk.getName(), caseMatters)) &&
                areEqual(fk.getForeignTableName(), curFk.getForeignTableName(), caseMatters))
            {
                curRefs.clear();
                CollectionUtils.addAll(curRefs, curFk.getReferences());

                // the order is not fixed, so we have to take this long way
                if (curRefs.size() == refs.length)
                {
                    for (int refIdx = 0; refIdx < refs.length; refIdx++)
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     */
    protected void writeEmbeddedForeignKeysStmt(Database database, Table table) throws IOException
    {
        for (int idx = 0; idx < table.getForeignKeyCount(); idx++)
        {
            ForeignKey key = table.getForeignKey(idx);

            if (key.getForeignTableName() == null)
            {
                _log.warn("Foreign key table is null for key " + key);
            }
            else
            {
                printStartOfEmbeddedStatement();
                if (getPlatformInfo().isEmbeddedForeignKeysNamed())
                {
                    print("CONSTRAINT ");
                    printIdentifier(getForeignKeyName(table, key));
                    print(" ");
                }
                print("FOREIGN KEY (");
                writeLocalReferences(key);
                print(") REFERENCES ");
                printIdentifier(getTableName(database.findTable(key.getForeignTableName())));
                print(" (");
                writeForeignReferences(key);
                print(")");
            }
        }
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        assertFalse(fkColumn.isRequired());
        assertFalse(fkColumn.isAutoIncrement());
        assertEquals("The foreign key",
                     fkColumn.getDescription());

        ForeignKey fk = anotherTable.getForeignKey(0);

        assertNull(fk.getName());
        assertEquals(someTable,
                     fk.getForeignTable());
        assertEquals(someTable.getName(),
                     fk.getForeignTableName());
        assertEquals(1,
                     fk.getReferenceCount());

        Reference ref = fk.getFirstReference();

        assertEquals(fkColumn,
                     ref.getLocalColumn());
        assertEquals("Some_ID",
                     ref.getLocalColumnName());
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        assertFalse(column.isAutoIncrement());
        assertNull(column.getDefaultValue());
        assertEquals("The name",
                     column.getDescription());

        ForeignKey fk = table.getForeignKey(0);

        assertEquals("parent",
                     fk.getName());
        assertEquals(table,
                     fk.getForeignTable());
        assertEquals("A",
                     fk.getForeignTableName());
        assertEquals(1,
                     fk.getReferenceCount());

        Reference ref = fk.getFirstReference();

        assertEquals(table.getColumn(1),
                     ref.getLocalColumn());
        assertEquals("parentId",
                     ref.getLocalColumnName());
        assertEquals(table.getColumn(0),
                     ref.getForeignColumn());
        assertEquals("id",
                     ref.getForeignColumnName());

        Index index = table.getIndex(0);

        assertNull(index.getName());
        assertTrue(index.isUnique());
        assertEquals(1,
                     index.getColumnCount());

        IndexColumn indexColumn = index.getColumn(0);

        assertEquals("name",
                     indexColumn.getName());
        assertNull(indexColumn.getSize());

        // table B
       
        table = model.getTable(1);

        assertEquals("B",
                     table.getName());
        assertEquals("Table B",
                     table.getDescription());
        assertEquals(0, table.getAutoIncrementColumns().length);
        assertEquals(3,
                     table.getColumnCount());
        assertEquals(2,
                     table.getForeignKeyCount());
        assertEquals(1,
                     table.getIndexCount());

        column = table.getColumn(0);

        assertEquals("id",
                     column.getName());
        assertEquals("TIMESTAMP",
                     column.getType());
        assertEquals(Types.TIMESTAMP,
                     column.getTypeCode());
        assertNull(column.getSize());
        assertEquals(0,
                     column.getSizeAsInt());
        assertTrue(column.isPrimaryKey());
        assertTrue(column.isRequired());
        assertFalse(column.isAutoIncrement());
        assertNull(column.getDefaultValue());
        assertEquals("The primary key of table B",
                     column.getDescription());

        column = table.getColumn(1);

        assertEquals("aid",
                     column.getName());
        assertEquals("INTEGER",
                     column.getType());
        assertEquals(Types.INTEGER,
                     column.getTypeCode());
        assertNull(column.getSize());
        assertEquals(0,
                     column.getSizeAsInt());
        assertFalse(column.isPrimaryKey());
        assertFalse(column.isRequired());
        assertFalse(column.isAutoIncrement());
        assertNull(column.getDefaultValue());
        assertEquals("The field for the foreign key towards A",
                     column.getDescription());

        column = table.getColumn(2);

        assertEquals("cid",
                     column.getName());
        assertEquals("CHAR",
                     column.getType());
        assertEquals(Types.CHAR,
                     column.getTypeCode());
        assertEquals("32",
                     column.getSize());
        assertEquals(32,
                     column.getSizeAsInt());
        assertFalse(column.isPrimaryKey());
        assertFalse(column.isRequired());
        assertFalse(column.isAutoIncrement());
        assertNull(column.getDefaultValue());
        assertEquals("The field for the foreign key towards C",
                     column.getDescription());

        fk = table.getForeignKey(0);

        assertNull(fk.getName());
        assertEquals(model.getTable(0),
                     fk.getForeignTable());
        assertEquals("A",
                     fk.getForeignTableName());
        assertEquals(1,
                     fk.getReferenceCount());

        ref = fk.getFirstReference();

        assertEquals(table.getColumn(1),
                     ref.getLocalColumn());
        assertEquals("aid",
                     ref.getLocalColumnName());
        assertEquals(model.getTable(0).getColumn(0),
                     ref.getForeignColumn());
        assertEquals("id",
                     ref.getForeignColumnName());

        fk = table.getForeignKey(1);

        assertNull(fk.getName());
        assertEquals(model.getTable(2),
                     fk.getForeignTable());
        assertEquals("C",
                     fk.getForeignTableName());
        assertEquals(1,
                     fk.getReferenceCount());

        ref = fk.getFirstReference();

        assertEquals(table.getColumn(2),
                     ref.getLocalColumn());
        assertEquals("cid",
                     ref.getLocalColumnName());
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                    }
                }
                // we also add the default names to foreign keys that are initially unnamed
                for (int fkIdx = 0; fkIdx < table.getForeignKeyCount(); fkIdx++)
                {
                    ForeignKey fk = table.getForeignKey(fkIdx);

                    if (fk.getName() == null)
                    {
                        fk.setName(getPlatform().getSqlBuilder().getForeignKeyName(table, fk));
                    }
                }
            }
            return model;
        }
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                     expected.getForeignKeyCount(),
                     actual.getForeignKeyCount());
        // order is not assumed with the way foreignkeys are returned.
        for (int expectedFkIdx = 0; expectedFkIdx < expected.getForeignKeyCount(); expectedFkIdx++)
        {
            ForeignKey expectedFk   = expected.getForeignKey(expectedFkIdx);
            String     expectedName = getPlatform().getSqlBuilder().shortenName(expectedFk.getName(), getSqlBuilder().getMaxForeignKeyNameLength());

            for (int actualFkIdx = 0; actualFkIdx < actual.getForeignKeyCount(); actualFkIdx++)
            {
                ForeignKey actualFk   = actual.getForeignKey(actualFkIdx);
                String     actualName = getPlatform().getSqlBuilder().shortenName(actualFk.getName(), getSqlBuilder().getMaxForeignKeyNameLength());

                if ((_useDelimitedIdentifiers  && expectedName.equals(actualName)) ||
                    (!_useDelimitedIdentifiers && expectedName.equalsIgnoreCase(actualName)))
                {
                    assertEquals(expectedFk, actualFk);
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  private boolean isForeignKey(Field field) {
    return (field.getLinkToTargetEntity()!=null && !field.getLinkToTargetEntity().trim().equals(""));
  }

  private ForeignKey getForeignKey(Field field, Database database) {
    ForeignKey foreignKey = new ForeignKey();
    foreignKey.addReference(getReference (field));
    foreignKey.setForeignTable(getForeignTable(field, database));
    foreignKey.setForeignTableName(field.getLinkToTargetEntity());
    return foreignKey;
  }
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