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Implement static HopObject.getById() function as described in this thread:

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http://grazia.helma.org/pipermail/helma-user/2005-February/002777.html
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hns 2005-02-11 16:58:24 +00:00
parent 0c3997ccc3
commit 91136fed4c
1 changed files with 31 additions and 0 deletions
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31
src/helma/scripting/rhino/RhinoCore.java
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@ -20,6 +20,7 @@ import helma.scripting.rhino.extensions.*;
import helma.framework.core.*;
import helma.objectmodel.*;
import helma.objectmodel.db.DbMapping;
import helma.objectmodel.db.DbKey;
import helma.scripting.*;
import helma.util.CacheMap;
import helma.util.SystemMap;
@ -275,6 +276,8 @@ public final class RhinoCore {
ScriptRuntime.setFunctionProtoAndParent(global, fo);
fo.setImmunePrototypeProperty(op);
// add static getById() function
fo.defineProperty("getById", new GetById(name), GetById.ATTRIBUTES);
op.setParentScope(fo);
ScriptableObject.defineProperty(global, name, fo, ScriptableObject.DONTENUM);
@ -1071,5 +1074,33 @@ public final class RhinoCore {
}
}
class GetById extends BaseFunction {
static final int ATTRIBUTES = DONTENUM | PERMANENT | READONLY;
String typeName;
public GetById(String typeName) {
this.typeName = typeName;
}
/**
* Retrieve any persistent HopObject by type name and id.
*
* @return the HopObject or null if it doesn't exist
*/
public Object call(Context cx, Scriptable scope, Scriptable thisObj, Object[] args) {
DbMapping dbmap = app.getDbMapping(typeName);
if (dbmap == null)
return null;
Object node = null;
try {
DbKey key = new DbKey(dbmap, Context.toString(args[0]));
node = app.getNodeManager().getNode(key);
} catch (Exception x) {
return null;
}
return node == null ? null : Context.toObject(node, this);
}
}
}