01: /*
02: * Bytecode analysis framework
03: * Copyright (C) 2005, University of Maryland
04: *
05: * This library is free software; you can redistribute it and/or
06: * modify it under the terms of the GNU Lesser General Public
07: * License as published by the Free Software Foundation; either
08: * version 2.1 of the License, or (at your option) any later version.
09: *
10: * This library is distributed in the hope that it will be useful,
11: * but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Lesser General Public License for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public
16: * License along with this library; if not, write to the Free Software
17: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18: */
19:
20: package edu.umd.cs.findbugs.ba;
21:
22: /**
23: * Convenience class for defining Dataflow classes which use a
24: * BasicAbstractDataflowAnalysis subtype. The main functionality is offering
25: * getFact{At,After}Location() methods which forward to the actual
26: * analysis object.
27: *
28: * @see edu.umd.cs.findbugs.ba.Dataflow
29: * @see edu.umd.cs.findbugs.ba.BasicAbstractDataflowAnalysis
30: * @author David Hovemeyer
31: */
32: public class AbstractDataflow<Fact, AnalysisType extends BasicAbstractDataflowAnalysis<Fact>>
33: extends Dataflow<Fact, AnalysisType> {
34:
35: /**
36: * Constructor.
37: *
38: * @param cfg CFG of the method on which dfa is performed
39: * @param analysis the dataflow analysis
40: */
41: public AbstractDataflow(CFG cfg, AnalysisType analysis) {
42: super (cfg, analysis);
43: }
44:
45: /**
46: * Get the fact that is true on the given control edge.
47: *
48: * @param edge the edge
49: * @return the fact that is true on the edge
50: * @throws DataflowAnalysisException
51: */
52: @Override
53: public Fact getFactOnEdge(Edge edge)
54: throws DataflowAnalysisException {
55: return getAnalysis().getFactOnEdge(edge);
56: }
57:
58: }
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