antville/helma
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Added flexible prototype chaining

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hns 2001-04-06 17:47:49 +00:00
parent 2cdb459c2d
commit 61404e7612
1 changed files with 37 additions and 5 deletions
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42
src/helma/framework/core/Prototype.java
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@ -62,13 +62,27 @@ public class Prototype {
if (retval == null && "true".equalsIgnoreCase (app.props.getProperty ("exposetemplates")))
retval = (Action) templates.get (aname);
// if still not found, check if the action is defined for the generic node prototype
if (retval == null && this != app.typemgr.nodeProto && app.typemgr.nodeProto != null)
retval = app.typemgr.nodeProto.getActionOrTemplate (aname);
if (retval == null && prototype != null)
retval = prototype.getActionOrTemplate (aname);
return retval;
}
public void setPrototype (Prototype prototype) {
Prototype old = this.prototype;
this.prototype = prototype;
// if prototype has changed, update ES-prototypes in request evaluators
if (prototype != old) {
Iterator evals = app.typemgr.getRegisteredRequestEvaluators ();
while (evals.hasNext ()) {
try {
RequestEvaluator reval = (RequestEvaluator) evals.next ();
ObjectPrototype op = reval.getPrototype (getName());
ObjectPrototype opp = prototype == null ? null : reval.getPrototype (prototype.getName ());
op.setPrototype (opp);
} catch (Exception ignore) {}
}
}
}
public Prototype getPrototype () {
@ -136,14 +150,25 @@ public class Prototype {
public void initRequestEvaluator (RequestEvaluator reval) {
ObjectPrototype op = null;
if ("user".equalsIgnoreCase (name))
// get the prototype's prototype if possible and necessary
ObjectPrototype opp = null;
if (prototype != null) {
if ("hopobject".equalsIgnoreCase (prototype.getName ()))
opp = reval.esNodePrototype;
else
opp = reval.getPrototype (prototype.getName ());
}
if ("user".equalsIgnoreCase (name)) {
op = reval.esUserPrototype;
else if ("global".equalsIgnoreCase (name))
op.setPrototype (opp);
} else if ("global".equalsIgnoreCase (name))
op = reval.global;
else if ("hopobject".equalsIgnoreCase (name))
op = reval.esNodePrototype;
else {
op = new ObjectPrototype (reval.esNodePrototype, reval.evaluator);
op = new ObjectPrototype (opp, reval.evaluator);
try {
op.putProperty ("prototypename", new ESString (name), "prototypename".hashCode ());
} catch (EcmaScriptException ignore) {}
@ -175,7 +200,14 @@ public class Prototype {
act.updateRequestEvaluator (reval);
} catch (EcmaScriptException ignore) {}
}
}
public String toString () {
return "[Prototype "+ app.getName()+"/"+name+"]";
}
}