SG::detail::WDHScan Class Reference

Helper to scan a tree of components to search for another handle key potentially conflicting with the container key part of a WriteDecorHandleKey. More...

Inheritance diagram for SG::detail::WDHScan:

Collaboration diagram for SG::detail::WDHScan:

Public Member Functions
	WDHScan (const DataObjID &contHandleKey, const IDataHandleHolder *owner)
	Constructor. More...
virtual void	visit (const IDataHandleHolder *h) override
	Called for each component in the tree. More...

Public Attributes
const DataObjID &	m_contHandleKey
	The key we're searching for. More...
const IDataHandleHolder *	m_owner
	Stop the search when we reach this component. More...
bool	m_found = false
	Did we find the key? More...
bool	m_sawOwner = false
	Have we reached m_owner yet? More...

Detailed Description

Helper to scan a tree of components to search for another handle key potentially conflicting with the container key part of a WriteDecorHandleKey.

Given a key, a tree of Gaudi components, and one (‘owner’) component within that tree, we search to see if any components occuring in the tree before ‘owner’ have a key that matches the one we're searching for.

Definition at line 81 of file WriteDecorHandleKey.cxx.

Constructor & Destructor Documentation

WDHScan()

SG::detail::WDHScan::WDHScan ( const DataObjID &  contHandleKey, const IDataHandleHolder *  owner  )

inline

Constructor.

Parameters

contHandleKey	key to search for.
owner	The ‘owner’ component, at which we stop the search.

Definition at line 90 of file WriteDecorHandleKey.cxx.

    : m_contHandleKey (contHandleKey),
      m_owner (owner)
  {
  }

Member Function Documentation

visit()

void SG::detail::WDHScan::visit ( const IDataHandleHolder *  h )

overridevirtual

Called for each component in the tree.

Parameters

H	Component to visit.

Definition at line 117 of file WriteDecorHandleKey.cxx.

{
  // Don't do anything if we've already found the key, or if we've seen m_owner.
  if (m_found || m_sawOwner) return;
  if (h == m_owner) {
    m_sawOwner = true;
    return;
  }
 
  // Test to see if this component has a key matching the one we're looking for.
  m_found = handleInHolder (m_contHandleKey, *h);
}

Member Data Documentation

m_contHandleKey

const DataObjID& SG::detail::WDHScan::m_contHandleKey

The key we're searching for.

Definition at line 100 of file WriteDecorHandleKey.cxx.

m_found

bool SG::detail::WDHScan::m_found = false

Did we find the key?

Definition at line 106 of file WriteDecorHandleKey.cxx.

m_owner

const IDataHandleHolder* SG::detail::WDHScan::m_owner

Stop the search when we reach this component.

Definition at line 103 of file WriteDecorHandleKey.cxx.

m_sawOwner

bool SG::detail::WDHScan::m_sawOwner = false

Have we reached m_owner yet?

Definition at line 109 of file WriteDecorHandleKey.cxx.

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The documentation for this class was generated from the following file:

• WriteDecorHandleKey.cxx