|
|
|
The Model-Driven System Builder
|
|
JeeWiz Architect's Guide
|
|
|
|
Contents >
13. 'Java' Reference
|
|
|
13.4 InterfaceField Object
| Used on |
|
| Superclass | namedValue |
| Subclassed By |
|
| Description | A field on a interface.
|
Inherited
properties |
|
13.4.1 Property 'annotation'
|
| Description | An optional list, comma-separated, of Java annotations.
|
| Type | String |
13.4.2 Property 'description'
|
| Description | Optional description.
Use this to
- document the meaning of a particular item
- specify functionality at the design stage for implementation later.
|
| Type | String |
| Support Element Inputs | true |
13.4.3 Property 'text'
|
13.4.4 Property 'default'
|
| Description | Specifies a default value to which the field will be set when created.
This is an expression which should be compatible with the field's 'type', or the generated program will not compile.
For primitive types, this will typically be just the literal value of the default, although it can be an expression.
Note that you should just specify the value part for numeric values, not a type-defining suffix.
For example, you must specify "0" rather that "0L".
For non-string objects, the default should create an object - e.g. 'new Integer(8)'.
String defaults are assumed to be string literals less the surrounding "".
They will have double-quotes added automatically, so the default is a String constant - e.g. Fred goes into the code as "Fred".
You can alter this action, to specify expressions for string defaults, by prefixing the expression with '\', which will be stripped off.
You can also start and end the default string value with '"', in which case it will not be altered.
String examples:
input: Fred
code: "Fred"
input: \otherfield.substring(1)
code: otherfield.substring(1)
input: \""
code: ""
The default expression as processed by the above algorithm can be retrieved via the method getDefaultExpression().
|
| Type | String |
 |
|
 |
Copyright (c) 2001-2008 New Technology/enterprise Ltd.
| |