Examples of clojure.lang.PersistentArrayMap

clojure.lang.PersistentArrayMap
Simple implementation of persistent map on an array
Note that instances of this class are constant values i.e. add/remove etc return new values
Copies array on every change, so only appropriate for _very_small_ maps
null keys and values are ok, but you won't be able to distinguish a null value via valAt - use contains/entryAt

  }


  /* IMeta */
  public IPersistentMap meta() {
    if (_meta == null) {
      _meta = new PersistentArrayMap(new Object[] {
          makeKeyword("stream"), getSourceStreamId(),
          makeKeyword("component"), getSourceComponent(),
          makeKeyword("task"), getSourceTask() });
    }
    return _meta;

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    List<String> fields = getFields().toList();
    for (int i = 0; i < values.size(); i++) {
      array[i * 2] = fields.get(i);
      array[(i * 2) + 1] = values.get(i);
    }
    return new PersistentArrayMap(array);
  }

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  public void prepare(final Map stormConf, final TopologyContext context,
      final OutputCollector collector) {
    IFn hof = Utils.loadClojureFn(_fnSpec.get(0), _fnSpec.get(1));
    try {
      IFn preparer = (IFn) hof.applyTo(RT.seq(_params));
      final Map<Keyword, Object> collectorMap = new PersistentArrayMap(
          new Object[] {
              Keyword.intern(Symbol.create("output-collector")),
              collector,
              Keyword.intern(Symbol.create("context")), context });
      List<Object> args = new ArrayList<Object>() {

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  public void open(final Map conf, final TopologyContext context,
      final SpoutOutputCollector collector) {
    IFn hof = Utils.loadClojureFn(_fnSpec.get(0), _fnSpec.get(1));
    try {
      IFn preparer = (IFn) hof.applyTo(RT.seq(_params));
      final Map<Keyword, Object> collectorMap = new PersistentArrayMap(
          new Object[] {
              Keyword.intern(Symbol.create("output-collector")),
              collector,
              Keyword.intern(Symbol.create("context")), context });
      List<Object> args = new ArrayList<Object>() {

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