Code example for HashSet

Methods: removeAllsize

0
        final Uri itemTags = Taggable.getTagPath(item);
 
        final Set<String> existingTags = getTags(provider, itemTags);
 
        // tags that need to be removed. 
        final Set<String> toDelete = new HashSet<String>(existingTags);
        toDelete.removeAll(tags);
 
        final Set<String> toAdd = new HashSet<String>(tags);
        toAdd.remove(existingTags);
 
        if (toAdd.size() == 0 && toDelete.size() == 0) {
            // done! 
            return; 
        } 
 
        final ArrayList<ContentProviderOperation> cpos = new ArrayList<ContentProviderOperation>();
 
        addTags(cpos, itemTags, toAdd);
 
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