org.ujorm.orm.metaModel
Class MetaDbService

java.lang.Object
  org.ujorm.orm.metaModel.MetaDbService

Direct Known Subclasses:

MetaDbServiceEx

public class MetaDbService
extends Object

A service method for the MetaDatabase class. The service class can be overriten

See Also:

MetaParams.META_DB_SERVICE

Field Summary

protected boolean	anyChange There is a database change
protected MetaDatabase	db Meta Database from constructor
protected StringBuilder	sql SQL Buffer
protected Statement	stat DB Statement for common use

Constructor Summary

MetaDbService()

Method Summary

protected void	changeIndex(List<MetaIndex> indexes) 5.
protected void	checkKeyWord(String word, MetaTable table, Set<String> keywords) Check the keyword
protected void	checkReportKeywords(Connection conn, List<MetaTable> tables, List<MetaColumn> newColumns, List<MetaIndex> indexes) 1.
void	create(MetaDatabase metaDatabase, Session session) Create DB
protected void	createForeignKey(List<MetaColumn> foreignColumns) 6.
protected void	createNewColumn(List<MetaColumn> newColumns, List<MetaColumn> foreignColumns) 4.
protected void	createSchema(int tableTotalCount, List<MetaTable> tables, Connection conn) 2.
protected void	createSequenceTable(boolean createSequenceTable) 7.
protected void	createTable(List<MetaTable> tables, List<MetaColumn> foreignColumns) 3.
protected void	createTableComments(List<MetaTable> tables) 8.
protected void	createTableComments(List<MetaTable> cTables, StringBuilder out) Create table and column comments.
protected String	dbIdentifier(String name, DatabaseMetaData dmd) Returns a native database identifirer.
protected void	executeUpdate(Appendable sql, MetaTable table) Check missing database table, index, or column
protected UjoSequencer	findFirstSequencer() Find the first sequence of the database or returns null if no sequence was not found.
protected SqlDialect	getDialect()
protected SqlDialectEx	getDialectEx() Returns an extended dialect
StringBuilder	getSql() SQL Buffer
protected boolean	initialize(Connection conn) 0.
protected boolean	isAnyChange() Has the database any change?
protected boolean	isCatalog() Does the database support a catalog? The feature supports: MySqlDialect and MSSqlDialect.
protected boolean	isModelChanged(Connection conn, List<MetaTable> newTables, List<MetaColumn> newColumns, List<MetaIndex> newIndexes) Find database table or columns to modify.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

db

protected MetaDatabase db

Meta Database from constructor

sql

protected final StringBuilder sql

SQL Buffer

stat

protected Statement stat

DB Statement for common use

anyChange

protected boolean anyChange

There is a database change

Constructor Detail

MetaDbService

public MetaDbService()

Method Detail

create

public void create(MetaDatabase metaDatabase,
                   Session session)

Create DB

getSql

public StringBuilder getSql()

SQL Buffer

isModelChanged

protected boolean isModelChanged(Connection conn,
                                 List<MetaTable> newTables,
                                 List<MetaColumn> newColumns,
                                 List<MetaIndex> newIndexes)
                          throws SQLException

Find database table or columns to modify.

Parameters:

conn - Database connection

newTables - Output parameter

newColumns - Output parameter

Throws:

SQLException

dbIdentifier

protected String dbIdentifier(String name,
                              DatabaseMetaData dmd)
                       throws SQLException

Returns a native database identifirer.

Throws:

SQLException

initialize

protected boolean initialize(Connection conn)
                      throws Exception

0. Initialization

Throws:

Exception

checkReportKeywords

protected void checkReportKeywords(Connection conn,
                                   List<MetaTable> tables,
                                   List<MetaColumn> newColumns,
                                   List<MetaIndex> indexes)
                            throws Exception

1. CheckReport keywords:

Throws:

Exception

createSchema

protected void createSchema(int tableTotalCount,
                            List<MetaTable> tables,
                            Connection conn)
                     throws SQLException,
                            IOException

2. Create schemas:

Throws:

SQLException

IOException

createTable

protected void createTable(List<MetaTable> tables,
                           List<MetaColumn> foreignColumns)
                    throws Exception

3. Create tables:

Throws:

Exception

createNewColumn

protected void createNewColumn(List<MetaColumn> newColumns,
                               List<MetaColumn> foreignColumns)
                        throws Exception

4. Create new columns:

Throws:

Exception

changeIndex

protected void changeIndex(List<MetaIndex> indexes)
                    throws Exception

5. Create Indexes:

Throws:

Exception

createForeignKey

protected void createForeignKey(List<MetaColumn> foreignColumns)
                         throws Exception

6. Create Foreign Keys:

Throws:

Exception

createSequenceTable

protected void createSequenceTable(boolean createSequenceTable)
                            throws Exception

7. Create SEQUENCE table:

Throws:

Exception

createTableComments

protected void createTableComments(List<MetaTable> tables)
                            throws Exception

8. Create table comment for the all tables:

Throws:

Exception

createTableComments

protected void createTableComments(List<MetaTable> cTables,
                                   StringBuilder out)

Create table and column comments. An error in this method does not affect the rest of all transaction.

checkKeyWord

protected void checkKeyWord(String word,
                            MetaTable table,
                            Set<String> keywords)
                     throws Exception

Check the keyword

Throws:

Exception

executeUpdate

protected void executeUpdate(Appendable sql,
                             MetaTable table)
                      throws IllegalStateException,
                             SQLException

Check missing database table, index, or column

Throws:

IllegalStateException

SQLException

findFirstSequencer

protected UjoSequencer findFirstSequencer()

Find the first sequence of the database or returns null if no sequence was not found.

isAnyChange

protected boolean isAnyChange()

Has the database any change?

getDialect

protected SqlDialect getDialect()

getDialectEx

protected SqlDialectEx getDialectEx()

Returns an extended dialect

isCatalog

protected final boolean isCatalog()

Does the database support a catalog? The feature supports: MySqlDialect and MSSqlDialect.

Returns:

Result value is provided from a SqlDialog class.