Changeset 3067

Timestamp:

Oct 3, 2010 9:23:58 AM (11 years ago)

Author:

wehart

Message:

Adding the AbstractModel? class.

File:

• coopr.pyomo/trunk/coopr/pyomo/base/PyomoModel.py (modified) (2 diffs)

coopr.pyomo/trunk/coopr/pyomo/base/PyomoModel.py

@@ -9 +9 @@
 #  _________________________________________________________________________
 
-__all__ = ['Model', 'ConcreteModel']
+__all__ = ['Model', 'ConcreteModel', 'AbstractModel']
 
 import array
@@ -836 +836 @@
         self._defer_construction=False
 
-    pyutilib.component.core.alias("ConcreteModel", 'Model with concrete '     \
-              'expressions, which can be used as a component of other models.')
+    pyutilib.component.core.alias("ConcreteModel", 'A concrete optimization model that '\
+              'does not defer construction of components.')
+
+class AbstractModel(Model):
+    """
+    An abstract optimization model that defers construction of
+    components.
+    """
+
+    def __init__(self, *args, **kwds):
+        Model.__init__(self, *args, **kwds)
+        self._defer_construction=True
+
+    pyutilib.component.core.alias("AbstractModel", 'An abstract optimization model that '\
+              'defers construction of components.')
+