SmartDataStorePtr.h File Reference

#include <GaudiKernel/SmartDataObjectPtr.h>

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Classes
class	SmartDataStorePtr< TYPE, LOADER >
	A small class used to access easily (and efficiently) data items residing in data stores. More...

Functions
template<class A, class LDA, class B, class LDB>
bool	operator&& (SmartDataStorePtr< A, LDA > &object_1, SmartDataStorePtr< B, LDB > &object_2)
	Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); SmartDataPtr<MCParticleVector> mctracks (evt,"/MC/MCParticles"); if ( mctracks && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.
template<class B, class LDB>
bool	operator&& (bool test, SmartDataStorePtr< B, LDB > &object)
	Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.
template<class B, class LDB>
bool	operator&& (SmartDataStorePtr< B, LDB > &object, bool test)
	Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.
template<class A, class LDA, class B, class LDB>
bool	operator|| (SmartDataStorePtr< A, LDA > &object_1, SmartDataStorePtr< B, LDB > &object_2)
	Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); SmartDataPtr<MCParticleVector> mctracks (evt,"/MC/MCParticles"); if ( mctracks || mcvertices ) { ... } and tests the existence of at least one objects in the data store.
template<class B, class LDB>
bool	operator|| (bool test, SmartDataStorePtr< B, LDB > &object)
	Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test || mcvertices ) { ... } and tests the existence of BOTH objects in the data store.
template<class B, class LDB>
bool	operator|| (SmartDataStorePtr< B, LDB > &object, bool test)
	Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.

Function Documentation

operator&&() [1/3]

template<class B, class LDB>

bool operator&&	(	bool	test,
		SmartDataStorePtr< B, LDB > &	object )

Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.

Parameters

test	First boolean to test
object	Smart pointer to second object

Returns

Boolean indicating existence of both objects

Definition at line 149 of file SmartDataStorePtr.h.

                                                                {
  if ( test ) {                               // Test existence of the first object
    if ( 0 != object.accessTypeSafeData() ) { // Test existence of the second object
      return true;                            // Fine: Both objects exist
    }
  }
  return false; // Tough luck: One is missing.
}

operator&&() [2/3]

template<class A, class LDA, class B, class LDB>

bool operator&&	(	SmartDataStorePtr< A, LDA > &	object_1,
		SmartDataStorePtr< B, LDB > &	object_2 )

Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); SmartDataPtr<MCParticleVector> mctracks (evt,"/MC/MCParticles"); if ( mctracks && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.

Parameters

object_1	Smart pointer to object 1
object_2	Smart pointer to second object

Returns

Boolean indicating existence of both objects

Definition at line 129 of file SmartDataStorePtr.h.

                                                                                            {
  if ( 0 != object_1.accessTypeSafeData() ) {   // Test existence of the first object
    if ( 0 != object_2.accessTypeSafeData() ) { // Test existence of the second object
      return true;                              // Fine: Both objects exist
    }
  }
  return false; // Tough luck: One is missing.
}

operator&&() [3/3]

template<class B, class LDB>

bool operator&&	(	SmartDataStorePtr< B, LDB > &	object,
		bool	test )

Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.

Parameters

object	Smart pointer to second object
test	Second boolean to test

Returns

Boolean indicating existence of both objects

Definition at line 169 of file SmartDataStorePtr.h.

                                                                {
  if ( test ) {                               // Test existence of the first object
    if ( 0 != object.accessTypeSafeData() ) { // Test existence of the second object
      return true;                            // Fine: Both objects exist
    }
  }
  return false; // Tough luck: One is missing.
}

operator||() [1/3]

template<class B, class LDB>

bool operator||	(	bool	test,
		SmartDataStorePtr< B, LDB > &	object )

Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test || mcvertices ) { ... } and tests the existence of BOTH objects in the data store.

Parameters

test	First boolean to test
object	Smart pointer to second object

Returns

Boolean indicating existence of both objects

Definition at line 214 of file SmartDataStorePtr.h.

                                                                {
  if ( test ) { // Test existence of the first object
    return true;
  }
  if ( 0 != object.accessTypeSafeData() ) { // Test existence of the second object
    return true;                            // Fine: Both objects exist
  }
  return false; // Tough luck: One is missing.
}

operator||() [2/3]

template<class A, class LDA, class B, class LDB>

bool operator||	(	SmartDataStorePtr< A, LDA > &	object_1,
		SmartDataStorePtr< B, LDB > &	object_2 )

Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); SmartDataPtr<MCParticleVector> mctracks (evt,"/MC/MCParticles"); if ( mctracks || mcvertices ) { ... } and tests the existence of at least one objects in the data store.

The second object will then NOT be loaded. It is assumed that the second choice is only an alternative usable in case the first object cannot be retrieved.

Parameters

object_1	Smart pointer to object 1
object_2	Smart pointer to second object

Returns

Boolean indicating existence of both objects

Definition at line 193 of file SmartDataStorePtr.h.

                                                                                            {
  if ( 0 != object_1.accessTypeSafeData() ) { // Test existence of the first object
    return true;
  }
  if ( 0 != object_2.accessTypeSafeData() ) { // Test existence of the second object
    return true;
  }
  return false; // Tough luck: Both are missing.
}

operator||() [3/3]

template<class B, class LDB>

bool operator||	(	SmartDataStorePtr< B, LDB > &	object,
		bool	test )

Helper to test Smart data objects efficiently This construct allows statements like: SmartDataPtr<MCVertexVector> mcvertices (evt,"/MC/MCVertices"); bool test = ... if ( test && mcvertices ) { ... } and tests the existence of BOTH objects in the data store.

Parameters

object	Smart pointer to second object
test	Second boolean to test

Returns

Boolean indicating existence of both objects

Definition at line 235 of file SmartDataStorePtr.h.

                                                                {
  if ( test ) { // Test existence of the first object
    return true;
  }
  if ( 0 != object.accessTypeSafeData() ) { // Test existence of the second object
    return true;                            // Fine: Both objects exist
  }
  return false; // Tough luck: One is missing.
}