refid in property

[Vincent Bergbauer <vi...@yahoo.com>]

Hello,

Now that path can have a reference id, it would be
convenient for properties to simply refer to them.

  <path id="mypath">
    <pathelement path="${lib.dir}/config"/>
    <pathelement path="${lib.dir}/etc"/>
  </path>
  <property name="somepath" refid="mypath"/>

Such properties could then be used for filtering or
whatever you may need.
The only requirement on the referenced object, is that
it implements toString() in a meaningful way.

The changes to taskdefs/Property.java are quite
trivial (full source in Property.zip):
// Private Reference attribute
private Reference ref = null;

// Accessors
public void setRefid(Reference ref) {
    this.ref = ref;
}

public Reference getRefid() {
    return ref;
}

// Adding a bit to Execute()
public void execute() throws BuildException {
    try {
        // ...
          
        if ((name != null) && (ref != null)) {
            Object obj = 
                ref.getReferencedObject(getProject());
            if (obj != null) {
                addProperty(name, obj.toString());
            }
        }
    } catch (Exception e) {
        throw new BuildException(e, location);
    }
}


Voila!

Note that it would be very useful for command line
arguments to behave like path:
<args id="myargs">
    <arg "--coucou"/>
    <arg "--cuckoo"/>
</args>

Cheers.
Vincent.




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Re: refid in property

[Stefan Bodewig <bo...@bost.de>]

Would one expect that given

<property name="dummy" id="dummyId" value="test" />

the following two constructs yield the same result

<property name="dummy2" value="${dummy}" />
<property name="dummy2" refid="dummyId" />

i.e. should Property get a toString method returning the value of the
property?

Stefan

PS: Vincent, please send a "diff -u" next time, a lot easier to apply
than copy/pasting code.