org.enableit.db.darrt
Class MetaDataFactory

java.lang.Object
  |
  +--org.enableit.db.darrt.AbstractFileHandler
        |
        +--org.enableit.db.darrt.MetaDataFactory

public class MetaDataFactory

extends AbstractFileHandler

Factory for DBMS table meta data.

Author:

Tim Stephenson

Field Summary

static java.lang.String

ABOUT CVS info ABOUT this class and its current version

Method Summary

static org.enableit.db.darrt.MetaDataFactory	getInstance()
org.enableit.db.beans.Database	getMetaData(org.enableit.db.beans.Provider provider)
org.enableit.db.beans.Database	getMetaData(org.enableit.db.beans.Provider provider, boolean refresh)
org.enableit.db.beans.Table	getMetaData(org.enableit.db.beans.Provider provider, java.lang.String tableName)
protected void	setMetaData(org.enableit.db.beans.Provider provider, org.enableit.db.beans.Database db) Allows an external class to specify meta-data rather than forcing it to be detected from an active connection.

Methods inherited from class org.enableit.db.darrt.AbstractFileHandler

getOperDir, setOperDir

Methods inherited from class java.lang.Object

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

Field Detail

ABOUT

public static final java.lang.String ABOUT

CVS info ABOUT this class and its current version

See Also:

Constant Field Values

Method Detail

getInstance

public static org.enableit.db.darrt.MetaDataFactory getInstance()

getMetaData

public org.enableit.db.beans.Database getMetaData(org.enableit.db.beans.Provider provider)
                                           throws DBException

Parameters:

provider - Information ABOUT how to obtain connection to the database.

Returns:

Table instance describing the table, never null.

Throws:

DBException - If meta data cannot be obtained.

getMetaData

public org.enableit.db.beans.Database getMetaData(org.enableit.db.beans.Provider provider,
                                                  boolean refresh)
                                           throws DBException

Parameters:

provider - Information ABOUT how to obtain connection to the database.

refresh - Should cache be refreshed?

Returns:

Table instance describing the table, never null.

Throws:

DBException - If meta data cannot be obtained.

getMetaData

public org.enableit.db.beans.Table getMetaData(org.enableit.db.beans.Provider provider,
                                               java.lang.String tableName)
                                        throws DBException

Parameters:

provider - Information ABOUT how to obtain connection to the database.

tableName - Name of table whose metadata is sought.

Returns:

Table instance describing the table, never null.

Throws:

DBException - If meta data cannot be obtained.

setMetaData

protected void setMetaData(org.enableit.db.beans.Provider provider,
                           org.enableit.db.beans.Database db)

Allows an external class to specify meta-data rather than forcing it to be detected from an active connection.

Implementation Note:

The requirement for this method comes from DarHandler, as it seems JDBC meta data is not available immediately. Not sure why this is since the schema creation connection has been closed.

Parameters:

provider -

db -