Screen Element

The screen is the container tag for all screen components. In this tag you have to define the JSP template the screen is going to render, the screen title (label), and some other features like the target, which is a list of queries to launch that will fill the criteria values.

XML skeleton

The basic structure of a screen XML is the next one:

<screen template="[template]" label="[screen-title-literal]" keep-criteria="[keep-criteria]" 
 target="[query-targets]" onload="[manintain-onload]" onunload="[maintain-onunload]"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:noNamespaceSchemaLocation="[schema-location]">
  <tag source="[source1]">...</tag>
  <tag source="[source2]">...</tag>
</screen>

Screen structure

For easier development of graphics, not all labels are required.

Element	Use	Multiples instances	Description
screen	Required	No	Screen container
tag	Optional	Yes	Source descriptors

Screen attributes

Screen element has the following attributes:

Attribute	Use	Type	Description	Values
template	Required	String	Template which the xml is going to render	full, window
label	Optional	String	Title of the screen	Note: You can use i18n files (locales)
keep-criteria	Optional	Boolean	Stores the screen data to show it whenever user returns to the screen (only inputs data, not grids or charts data)	Default value is false
target	Optional	String	Initial queries which initialize all criteria values in the screen. Queries columns must match criteria identifiers	Query identifiers, separated by commas ,
onload	Optional	String	Maintain target to launch on screen load	Maintain target identifier
onunload	Optional	String	Maintain target to launch on screen unload	Maintain target identifier
schema-location	Required	String	Location for XSD files	Example for awe screens: "../../sch/awe/screen.xsd"