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comparison: content/xul/templates/src/nsRDFTestNode.h
content/xul/templates/src/nsRDFTestNode.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:7025f84b4767 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef nsRDFTestNode_h__ | |
| 7 #define nsRDFTestNode_h__ | |
| 8 | |
| 9 #include "nsRuleNetwork.h" | |
| 10 | |
| 11 class nsIRDFResource; | |
| 12 class nsIRDFNode; | |
| 13 | |
| 14 /** | |
| 15 * An abstract base class for all of the RDF-related tests. This interface | |
| 16 * allows us to iterate over all of the RDF tests to find the one in the | |
| 17 * network that is apropos for a newly-added assertion. | |
| 18 */ | |
| 19 class nsRDFTestNode : public TestNode | |
| 20 { | |
| 21 public: | |
| 22 nsRDFTestNode(TestNode* aParent) | |
| 23 : TestNode(aParent) {} | |
| 24 | |
| 25 /** | |
| 26 * Determine whether the node can propagate an assertion | |
| 27 * with the specified source, property, and target. If the | |
| 28 * assertion can be propagated, aInitialBindings will be | |
| 29 * initialized with appropriate variable-to-value assignments | |
| 30 * to allow the rule network to start a constrain and propagate | |
| 31 * search from this node in the network. | |
| 32 * | |
| 33 * @return true if the node can propagate the specified | |
| 34 * assertion. | |
| 35 */ | |
| 36 virtual bool CanPropagate(nsIRDFResource* aSource, | |
| 37 nsIRDFResource* aProperty, | |
| 38 nsIRDFNode* aTarget, | |
| 39 Instantiation& aInitialBindings) const = 0; | |
| 40 | |
| 41 /** | |
| 42 * | |
| 43 */ | |
| 44 virtual void Retract(nsIRDFResource* aSource, | |
| 45 nsIRDFResource* aProperty, | |
| 46 nsIRDFNode* aTarget) const = 0; | |
| 47 }; | |
| 48 | |
| 49 #endif // nsRDFTestNode_h__ |
