lazyj.widgets

Class DBTreeProvider<K,V>

java.lang.Object

lazyj.widgets.DBTreeProvider<K,V>

Type Parameters:

K - key type (usually Integer)

V - value type (usually String)

All Implemented Interfaces:

TreeProvider<K,V>

Direct Known Subclasses:

BasicDBTreeProvider

public abstract class DBTreeProvider<K,V>
extends java.lang.Object
implements TreeProvider<K,V>

Implementation of TreeProvider that takes a database query as argument.

Since:

Nov 26, 2007 (1.0.4)

Author:

costing

Field Summary

Fields

Modifier and Type	Field and Description
protected DBFunctions	db Database row.

Constructor Summary

Constructors

Constructor and Description
DBTreeProvider(DBFunctions db) Constructor based on a database query.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	moveNext() Go to the next entry in the list.

Methods inherited from class java.lang.Object

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

Methods inherited from interface lazyj.widgets.TreeProvider

getKey, getParent, getValue

Field Detail

db

protected final DBFunctions db

Database row.

Constructor Detail

DBTreeProvider

public DBTreeProvider(DBFunctions db)

Constructor based on a database query. The parameter should be a SELECT database query result.

Parameters:

db -

Method Detail

moveNext

public boolean moveNext()

Description copied from interface: TreeProvider

Go to the next entry in the list. Take care if you use DBFunctions.moveNext() to implement this function because the first call is dummy on database rows while here it is expected to actually do something from the first call. The easy way out is to do a moveNext on the database result after executing the query and before building the tree from it.

Specified by:

moveNext in interface TreeProvider<K,V>

Returns:

true if move was possible

See Also:

DBFunctions.moveNext()