org.apache.ddlutils.dynabean
Class DynaClassCache

java.lang.Object
  org.apache.ddlutils.dynabean.DynaClassCache

public class DynaClassCache
extends Object

Provides a cache of dyna class instances for a specific model, as well as helper methods for dealing with these classes.

Version:

$Revision: 231110 $

Constructor Summary

DynaClassCache()

Method Summary

DynaBean	copy(Table table, Object source) Creates a new dyna bean instance for the given table and copies the values from the given source object.
DynaBean	createNewInstance(Table table) Creates a new dyna bean instance for the given table.
SqlDynaClass	getDynaClass(DynaBean dynaBean) Returns the SqlDynaClass for the given bean.
SqlDynaClass	getDynaClass(Table table) Returns the SqlDynaClass for the given table.

Methods inherited from class java.lang.Object

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

Constructor Detail

DynaClassCache

public DynaClassCache()

Method Detail

createNewInstance

public DynaBean createNewInstance(Table table)
                           throws SqlDynaException

Creates a new dyna bean instance for the given table.

Parameters:

table - The table

Returns:

The new empty dyna bean

Throws:

SqlDynaException

copy

public DynaBean copy(Table table,
                     Object source)
              throws SqlDynaException

Creates a new dyna bean instance for the given table and copies the values from the given source object. The source object can be a bean, a map or a dyna bean. This method is useful when iterating through an arbitrary dyna bean result set after performing a query, then creating a copy as a DynaBean which is bound to a specific table. This new DynaBean can be kept around, changed and stored back into the database.

Parameters:

table - The table to create the dyna bean for

source - Either a bean, a Map or a dyna bean that will be used to populate the resultint dyna bean

Returns:

A new dyna bean bound to the given table and containing all the properties from the source object

Throws:

SqlDynaException

getDynaClass

public SqlDynaClass getDynaClass(Table table)

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

Parameters:

table - The table

Returns:

The SqlDynaClass for the indicated table

getDynaClass

public SqlDynaClass getDynaClass(DynaBean dynaBean)
                          throws SqlDynaException

Returns the SqlDynaClass for the given bean.

Parameters:

dynaBean - The bean

Returns:

The dyna bean class

Throws:

SqlDynaException