Athena Developer Guide

Athena Chapter 17 Physical design issues Version/Issue: 2.0.0
17.3.1.1.1 Component declaration statements
The complete set of statements that are available for declaring components is shown in Listing 17.4.
They include those that support C++ classes in different namespaces, as well as for DataObjects or
ContainedObjects using the generic converters.
Listing 17.4 The available component declaration statements
DECLARE_ALGORITHM(X)
DECLARE_ALGTOOL(X)
DECLARE_AUDITOR(X)
DECLARE_CONVERTER(X)
DECLARE_GENERIC_CONVERTER(X) [1]
DECLARE_OBJECT(X)
DECLARE_SERVICE(X)
DECLARE_TOOL(X) [2]
DECLARE_NAMESPACE_ALGORITHM(N,X) [3]
DECLARE_NAMESPACE_ALGTOOL(N,X)
DECLARE_NAMESPACE_AUDITOR(N,X)
DECLARE_NAMESPACE_CONVERTER(N,X)
DECLARE_NAMESPACE_GENERIC_CONVERTER(N,X)
DECLARE_NAMESPACE_OBJECT(N,X)
DECLARE_NAMESPACE_SERVICE(N,X)
DECLARE_NAMESPACE_TOOL(N,X)
Notes:
1. Declarations of the form DECLARE_GENERIC_CONVERTER(X) are used to declare the
generic converters for DataObject and ContainedObject classes. For DataObject
classes, the argument should be the class name itself (e.g. EventHeader), whereas for
ContainedObject classes, the argument should be the class name concatenated with
either List or Vector (e.g. CellVector) depending on whether the objects are
associated with an ObjectList or ObjectVector.
2. The DECLARE_ALGTOOL(X) and DECLARE_TOOL(X) declarations are synonyms of each
other.
3. Declarations of this form are used to declare components from explicit C++ namespaces. The
first argument is the namespace (e.g. Atlfast), and the second is the class name (e.g.
CellMaker).
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