public static LevelStorageBackend[] revalidate(final Expression[] expressions,
final int length,
final boolean includeStructuralProcessing)
{
// recompute the level storage ..
final LevelList levelList = new LevelList();
int minLevel = Integer.MIN_VALUE;
for (int i = 0; i < length; i++)
{
final Expression expression = expressions[i];
// The list maps the current position to the level ..
final int dependencyLevel = expression.getDependencyLevel();
levelList.add(IntegerCache.getInteger(i), dependencyLevel);
if (minLevel < dependencyLevel)
{
minLevel = dependencyLevel;
}
}
if (includeStructuralProcessing)
{
if (minLevel > Integer.MIN_VALUE)
{
for (int i = 0; i < length; i++)
{
final Expression expression = expressions[i];
// The list maps the current position to the level ..
final int dependencyLevel = expression.getDependencyLevel();
if (dependencyLevel == minLevel && (expression instanceof Function == false))
{
// add this expression to the structural pre-processing so that it can influence the
// construction of the crosstab if needed.
levelList.add(IntegerCache.getInteger(i), LayoutProcess.LEVEL_STRUCTURAL_PREPROCESSING);
}
}
}
}
final Integer[] levels = levelList.getLevelsDescendingArray();
final LevelStorageBackend[] levelData = new LevelStorageBackend[levels.length];
final int expressionsCount = levelList.size();
final int capacity = Math.min(20, expressionsCount);
final IntList activeExpressions = new IntList(capacity);
final IntList functions = new IntList(capacity);
final IntList pageEventListeners = new IntList(capacity);
for (int i = 0; i < levels.length; i++)
{
final int currentLevel = levels[i].intValue();
final Integer[] data = (Integer[])
levelList.getElementArrayForLevel(currentLevel, EMPTY_INTEGERARRAY);
for (int x = 0; x < data.length; x++)
{
final Integer position = data[x];
final Expression ex = expressions[position.intValue()];
final int globalPosition = position.intValue();