private void initAvailableEstimators() {
Class<? extends TimeMap> type = column.getTypeClass();
try {
TimeMap dummy = type.newInstance();
for (Estimator estimator : Estimator.values()) {
if (dummy.isSupported(estimator)) {
comboBox.addItem(new EstimatorWrapper(estimator));
}
}
} catch (InstantiationException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
}
}
private boolean isPartition(Graph graph, Column column) {
if (column.isDynamic()) {
Set<Object> set = new HashSet<Object>();
boolean hasNullValue = false;
int elements = 0;
ElementIterable<? extends Element> iterable =
AttributeUtils.isNodeColumn(column) ? graph.getNodes() : graph.getEdges();
for (Element el : iterable) {
TimeMap val = (TimeMap) el.getAttribute(column);
if (val != null) {
Object[] va = val.toValuesArray();
for (Object v : va) {
if (v != null) {
set.add(v);
} else {
hasNullValue = true;
}
elements++;
}
}
}
double ratio = set.size() / (double) elements;
return ratio <= 0.9;
} else if (column.isIndexed()) {
Index index;
if (AttributeUtils.isNodeColumn(column)) {
index = graphModel.getNodeIndex(graph.getView());
} else {
index = graphModel.getEdgeIndex(graph.getView());
}
int valueCount = index.countValues(column);
int elementCount = index.countElements(column);
double ratio = valueCount / (double) elementCount;
return ratio <= 0.9;
}
return false;
}