1 files changed, 74 insertions, 0 deletions
diff --git a/ACE/ace/Monitor_Control/Constraint_Interpreter.h b/ACE/ace/Monitor_Control/Constraint_Interpreter.h
new file mode 100644
index 00000000000..701a2ecd989
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+++ b/ACE/ace/Monitor_Control/Constraint_Interpreter.h
@@ -0,0 +1,74 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file   Constraint_Interpreter.h
+ *
+ *  $Id$
+ *
+ *  @author Jeff Parsons <j.parsons@vanderbilt.edu>
+ */
+//=============================================================================
+
+#ifndef CONSTRAINT_INTERPRETER_H
+#define CONSTRAINT_INTERPRETER_H
+
+#include /**/ "ace/pre.h"
+
+#include "ace/CDR_Base.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#if defined (ACE_HAS_MONITOR_FRAMEWORK) && (ACE_HAS_MONITOR_FRAMEWORK == 1)
+
+#include "ace/ETCL/ETCL_Interpreter.h"
+
+#include "ace/Monitor_Control/Monitor_Control_export.h"
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+namespace ACE
+{
+  namespace Monitor_Control
+  {
+    class Constraint_Visitor;
+
+    /**
+     * @class Constraint_Interpreter
+     *
+     * @brief "ETCL" Interpreter for MonitorControl constraints,
+              specialized to encapsulate MonitorControl-specific
+              knowledge of types and visitors.
+     */
+    class MONITOR_CONTROL_Export Constraint_Interpreter
+      : public ETCL_Interpreter
+    {
+    public:
+      Constraint_Interpreter (void);
+
+      virtual ~Constraint_Interpreter (void);
+
+      /**
+       * This method builds an expression tree representing the
+       * constraint specified in <constraints>, and returns -1 with
+       * an error message if the constraint given has syntax errors or
+       * semantic errors, such as mismatched types.
+       */
+      int build_tree (const char* constraints);
+
+      /// Returns true if the constraint is evaluated successfully by
+      /// the evaluator.
+      ACE_CDR::Boolean evaluate (Constraint_Visitor &evaluator);
+    };
+  }
+}
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#endif /* ACE_HAS_MONITOR_FRAMEWORK==1 */
+
+#include /**/ "ace/post.h"
+
+#endif /* CONSTRAINT_INTERPRETER_H */