/**
* Checks consistency of the current node against all other collections in the group.
*
* @param comparisonNode The node to check consistency against
* @param group The group against whcih to check.
* @param cache Disjoint query cache
* @return True if the node is consistent with all nodes in the group. False otherwise.
*/
private boolean isConsistent(
DAGNode comparisonNode, Collection<DAGNode> group, Map<String, QueryResult> cache) {
String compID = comparisonNode.getIdentifier();
for (DAGNode n : group) {
if (n.equals(comparisonNode)) continue;
// Create cache string to check for existing results.
String nID = n.getIdentifier();
String cacheStr = (nID.compareTo(compID) < 0) ? nID + compID : compID + nID;
QueryResult result = null;
if (!cache.containsKey(cacheStr)) {
// Ask the disjoint query
QueryObject qo =
new QueryObject(
false,
false,
QueryResult.TRUE,
CommonConcepts.DISJOINTWITH.getNode(dag_),
comparisonNode,
n);
result = queryModule_.prove(qo);
cache.put(cacheStr, result);
} else result = cache.get(cacheStr);
if (result == QueryResult.TRUE) return false;
}
return true;
}
private boolean isAlreadyDisjointed(Node targetNode, Node child) {
return queryModule_.prove(false, CommonConcepts.DISJOINTWITH.getNode(dag_), targetNode, child)
== QueryResult.TRUE;
}