org.apache.ddlutils.model

Class Database

java.lang.Object

org.apache.ddlutils.model.Database

All Implemented Interfaces:

Serializable, Cloneable

public class Database
extends Object
implements Serializable, Cloneable

Represents the database model, ie. the tables in the database. It also contains the corresponding dyna classes for creating dyna beans for the objects stored in the tables.

Version:

$Revision: 504014 $

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Database()

Method Summary

Methods

Modifier and Type	Method and Description
void	addTable(int idx, Table table) Adds a table at the specified position.
void	addTable(Table table) Adds a table.
void	addTables(Collection tables) Adds the given tables.
Object	clone()
org.apache.commons.beanutils.DynaBean	createDynaBeanFor(String tableName, boolean caseSensitive) Convenience method that combines createDynaBeanFor(Table) and findTable(String, boolean).
org.apache.commons.beanutils.DynaBean	createDynaBeanFor(Table table) Creates a new dyna bean for the given table.
boolean	equals(Object obj)
Table	findTable(String name) Finds the table with the specified name, using case insensitive matching.
Table	findTable(String name, boolean caseSensitive) Finds the table with the specified name, using case insensitive matching.
SqlDynaClass	getDynaClassFor(org.apache.commons.beanutils.DynaBean bean) Returns the SqlDynaClass for the given dyna bean.
SqlDynaClass	getDynaClassFor(String tableName) Returns the SqlDynaClass for the given table name.
String	getIdMethod() Returns the method for generating primary key values.
String	getName() Returns the name of this database model.
Table	getTable(int idx) Returns the table at the specified position.
int	getTableCount() Returns the number of tables in this model.
Table[]	getTables() Returns the tables in this model.
String	getVersion() Returns the version of this database model.
int	hashCode()
void	initialize() Initializes the model by establishing the relationships between elements in this model encoded eg.
void	mergeWith(Database otherDb) Adds all tables from the other database to this database.
void	removeTable(int idx) Removes the indicated table.
void	removeTable(Table table) Removes the given table.
void	resetDynaClassCache() Resets the dyna class cache.
void	setIdMethod(String idMethod) Sets the method for generating primary key values.
void	setName(String name) Sets the name of this database model.
void	setVersion(String version) Sets the version of this database model.
String	toString()
String	toVerboseString() Returns a verbose string representation of this database.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Database

public Database()

Method Detail

mergeWith

public void mergeWith(Database otherDb)
               throws ModelException

Adds all tables from the other database to this database. Note that the other database is not changed.

Parameters:

otherDb - The other database model

Throws:

ModelException

getName

public String getName()

Returns the name of this database model.

Returns:

The name

setName

public void setName(String name)

Sets the name of this database model.

Parameters:

name - The name

getVersion

public String getVersion()

Returns the version of this database model.

Returns:

The version

setVersion

public void setVersion(String version)

Sets the version of this database model.

Parameters:

version - The version

getIdMethod

public String getIdMethod()

Returns the method for generating primary key values.

Returns:

The method

setIdMethod

public void setIdMethod(String idMethod)

Sets the method for generating primary key values. Note that this value is ignored by DdlUtils and only for compatibility with Torque.

Parameters:

idMethod - The method

getTableCount

public int getTableCount()

Returns the number of tables in this model.

Returns:

The number of tables

getTables

public Table[] getTables()

Returns the tables in this model.

Returns:

The tables

getTable

public Table getTable(int idx)

Returns the table at the specified position.

Parameters:

idx - The index of the table

Returns:

The table

addTable

public void addTable(Table table)

Adds a table.

Parameters:

table - The table to add

addTable

public void addTable(int idx,
            Table table)

Adds a table at the specified position.

Parameters:

idx - The index where to insert the table

table - The table to add

addTables

public void addTables(Collection tables)

Adds the given tables.

Parameters:

tables - The tables to add

removeTable

public void removeTable(Table table)

Removes the given table.

Parameters:

table - The table to remove

removeTable

public void removeTable(int idx)

Removes the indicated table.

Parameters:

idx - The index of the table to remove

initialize

public void initialize()
                throws ModelException

Initializes the model by establishing the relationships between elements in this model encoded eg. in foreign keys etc. Also checks that the model elements are valid (table and columns have a name, foreign keys rference existing tables etc.)

Throws:

ModelException

findTable

public Table findTable(String name)

Finds the table with the specified name, using case insensitive matching. Note that this method is not called getTable to avoid introspection problems.

Parameters:

name - The name of the table to find

Returns:

The table or null if there is no such table

findTable

public Table findTable(String name,
              boolean caseSensitive)

Finds the table with the specified name, using case insensitive matching. Note that this method is not called getTable) to avoid introspection problems.

Parameters:

name - The name of the table to find

caseSensitive - Whether case matters for the names

Returns:

The table or null if there is no such table

resetDynaClassCache

public void resetDynaClassCache()

Resets the dyna class cache. This should be done for instance when a column has been added or removed to a table.

getDynaClassFor

public SqlDynaClass getDynaClassFor(String tableName)

Returns the SqlDynaClass for the given table name. If the it does not exist yet, a new one will be created based on the Table definition.

Parameters:

tableName - The name of the table to create the bean for

Returns:

The SqlDynaClass for the indicated table or null if the model contains no such table

getDynaClassFor

public SqlDynaClass getDynaClassFor(org.apache.commons.beanutils.DynaBean bean)

Returns the SqlDynaClass for the given dyna bean.

Parameters:

bean - The dyna bean

Returns:

The SqlDynaClass for the given bean

createDynaBeanFor

public org.apache.commons.beanutils.DynaBean createDynaBeanFor(Table table)
                                                        throws SqlDynaException

Creates a new dyna bean for the given table.

Parameters:

table - The table to create the bean for

Returns:

The new dyna bean

Throws:

SqlDynaException

createDynaBeanFor

public org.apache.commons.beanutils.DynaBean createDynaBeanFor(String tableName,
                                                      boolean caseSensitive)
                                                        throws SqlDynaException

Convenience method that combines createDynaBeanFor(Table) and findTable(String, boolean).

Parameters:

tableName - The name of the table to create the bean for

caseSensitive - Whether case matters for the names

Returns:

The new dyna bean

Throws:

SqlDynaException

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class Object

Throws:

CloneNotSupportedException

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

toVerboseString

public String toVerboseString()

Returns a verbose string representation of this database.

Returns:

The string representation