Example usage for com.google.common.collect ImmutableSortedSet headSet

Introduction

In this page you can find the example usage for com.google.common.collect ImmutableSortedSet headSet.

Prototype

public ImmutableSortedSet<E> headSet(E toElement) 

Source Link

Usage

From source file:com.facebook.buck.io.file.PathListing.java

private static ImmutableSortedSet<Path> subSet(ImmutableSortedSet<Path> paths, FilterMode filterMode,
        int limitIndex) {
    // This doesn't copy the contents of the ImmutableSortedSet. We use it
    // as a simple way to get O(1) access to the set's contents, as otherwise
    // we would have to iterate to find the Nth element.
    ImmutableList<Path> pathsList = paths.asList();
    boolean fullSet = limitIndex == paths.size();
    switch (filterMode) {
    case INCLUDE:
        // Make sure we don't call pathsList.get(pathsList.size()).
        if (!fullSet) {
            paths = paths.headSet(pathsList.get(limitIndex));
        }/*  w  w  w . j a  v  a 2s.  c  o  m*/
        break;
    case EXCLUDE:
        if (fullSet) {
            // Make sure we don't call pathsList.get(pathsList.size()).
            paths = ImmutableSortedSet.of();
        } else {
            paths = paths.tailSet(pathsList.get(limitIndex));
        }
        break;
    }
    return paths;
}

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