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by Jeremy Rayner.
Original Post: braindump("Java Properties are a faff")
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Feed Description: Jeremy Rayner on java and other stuff.
b>Problem: Standard JavaBean properties
this is currently a bit of a faff!! (I told you I was lazy)
private String foo;
public String getFoo() {
return foo;
}
public void setFoo(String foo) {
this.foo = foo;
}
Most of the time I want to code this in
one line (Java Language change!) so the above
would become the succinct:
String -rw foo;
How: implement as a pre-processor... Why Not:
is this in xdoclet/groovy/ant regexp task/generic pre processor already?
No point creating non-standard language features
Maintainence burden increased as yet another oddity introduced to your codebase
'cos I'd be biled for being silly :)
What modifiers do I propose?
none
get
set
get+set
private
-
-r
-w
-rw
protected
#
#r
#w
#rw
package
*
*r
*w
*rw
public
+
+r
+w
+rw
Why not try to create solution in Valid Java try for valid java?
String foo-rw; --> private String foo
String foo*rw; --> public String foo // this is probably not valid
foo-rw += foo-rw; --> setFoo(getFoo() + getFoo()); // hard transformation...
invalid java?
String -rw foo;
String +rw foo;
foo += foo; --> setFoo(getFoo() + getFoo()); // hard ...
setFoo(getFoo() +getFoo()); // no transformation, but won't compile/editors barf...
Either way we still have issue with usage of getters/setters,
so assume that the usage of getters/setters is outside scope
of preprocessor, the choice is between which looks nice and
which will not be highlighted as a problem in editors.
Additional issues
Collection properties
boolean properties
Could also indicate that property is parameter to constructor
Suggested Implementation
Implement a preprocessor that takes a single java
file from a URI as input and a destination URI as output.
Wrap ant task around preprocessor that basically does :-
<target name="compile" depends="init" >
<!-- This is the new ant task being called -->
<jpp include="${src.dir}/**/*.java"
outputdirectory="${pre.processed.src.dir}"/>
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