Athena Developer Guide

Athena Chapter 14 Tools and ToolSvc Version/Issue: 2.0.0
Listing 14.11 Extracted code from the AsctExampleAlgorithm
1: #include "GaudiTools/IAssociator.h"
2: // Example of retrieving an associator
3: IAssociator
4: StatusCode sc = toolsvc->retrieveTool("AxPart2MCParticleAsct", m_pAsct);
5: if( sc.isFailure() ) {
6: log retrieveInverse( *itm, mptry );
15: if( sc.isSuccess() ) {...}
16: else {...}
17: }
18: // Example of retrieving direct one-to-many information from an
19: // associator
20: SmartDataPtr candidates(evt,
"/Anal/AxPartCandidates");
21: std::vector pptry;
22: AxPartCandidate* itP = *(candidates->begin());
23: StatusCode sa =
m_pAsct->retrieveDirect(itP, pptry, MCParticle::classID());
24: if( sa.isFailure() ) {...}
25: else {
26: for (std::vector::iterator it = pptry.begin();
pptry.end() != it; it++ ) {
27: MCParticle* imc = dynamic_cast( *it );
28: }
29: }
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