By James Larson
With no moving into the main points and complexities of particular advertisement items, this booklet introduces database administration suggestions that transcend ultra-modern relational database administration platforms - for example, allotted, textual, multi-media and object-oriented. It covers allotted database administration structures, the hazards linked to them, and substitute suggestions to the most important pitfalls and technical difficulties; considers 3 different types of textual established platforms info retrieval, hoovering and filtering - and describes quite a few techniques to dispensed textual database administration structures; explores DBMSs that deal with various new media varieties, and the detailed difficulties brought through multimedia; and describes the elemental ideas of object-oriented facts and the categories of DBMS that deal with them.
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Extra resources for Database Directions: From Relational to Distributed, Multimedia and Object-Oriented Database Systems
Apart from adding style information within a CSS resource file, you can also add style information directly to certain aspects of the rendered widget. Listing 3-4 demonstrates both methods. Listing 3-4. layout(); Tip While it is generally bad practice to embed style information within GWT source code, if you do wish to temporarily do this, remember this tip: all CSS properties must be in CamelCase. For example, “background-color: white” needs to be “backgroundColor: white”. Developing with Ext GWT 27 There are quite a few new concepts in this Listing 3-4.
Add(mb); Menus can be added to widgets that have a setMenu(Menu) method. When selected, these widgets show the menu. Other widgets have a setContextMenu(Menu) method, and show the menu when it is right-clicked. tips ToolTips, when added to widgets, provide additional information about the widget when you hover over the widget, as illustrated in Figure 3-12. Figure 3-12. ToolTip example All widgets that extend Component include support for a setToolTip(String) method as a convenient way to quickly set up a tool tip.
This layout extends BoxLayout. Developing with Ext GWT 55 Table 4-1. (continued) RowLayout This layout positions the container's children in a single horiztontal or vertical row. Each component may specify its height and width in pixels or as a percentage. TableLayout This layout allows you to easily render content into an HTML table. The layout, based on a total column count, correctly places widgets into table rows and columns. TableRowLayout This is a single-row TableLayout that lays out widgets in multiple columns with a single horizontal row.
Database Directions: From Relational to Distributed, Multimedia and Object-Oriented Database Systems by James Larson