Examples of buri.ddmsence.util.LazyList

buri.ddmsence.util.LazyList
Utility class for a list with dynamically added contents.
LazyList wraps around a standard ArrayList and ensures that any get() activity which returns a null value will return a freshly instantiated item instead.

This class should allow the Component Builder framework to function well within a form-based UI, where child components are added / removed at the web page level.

This class is similar in intent to the Apache commons-collections version, but my implementation differs in the following ways:
- Simplified layers of abstraction.
- Eliminated overhead of Factory boilerplate to instantiate new items. Classes can just be instantiated through the basic no-arg constructor.
- Interim positions are also instantiated when an index beyond the size of the list is requested.
@author Brian Uri! @since 1.9.0

    /**
     * Builder accessor for the coordinates
     */
    public List<Position.Builder> getPositions() {
      if (_positions == null)
        _positions = new LazyList(Position.Builder.class);
      return _positions;
    }

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    /**
     * Builder accessor for the coordinates of the position
     */
    public List<Position.DoubleBuilder> getCoordinates() {
      if (_coordinates == null)
        _coordinates = new LazyList(Position.DoubleBuilder.class);
      return _coordinates;
    }

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    /**
     * Builder accessor for the notices
     */
    public List<Notice.Builder> getNotices() {
      if (_notices == null)
        _notices = new LazyList(Notice.Builder.class);
      return _notices;
    }

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    /**
     * Builder accessor for the keywords in this coverage.
     */
    public List<Keyword.Builder> getKeywords() {
      if (_keywords == null)
        _keywords = new LazyList(Keyword.Builder.class);
      return _keywords;
    }

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    /**
     * Builder accessor for the categories in this coverage.
     */
    public List<Category.Builder> getCategories() {
      if (_categories == null)
        _categories = new LazyList(Category.Builder.class);
      return _categories;
    }

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    /**
     * Builder accessor for the production metrics in this coverage.
     */
    public List<ProductionMetric.Builder> getProductionMetrics() {
      if (_productionMetrics == null)
        _productionMetrics = new LazyList(ProductionMetric.Builder.class);
      return _productionMetrics;
    }

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    /**
     * Builder accessor for the non-state actors in this coverage.
     */
    public List<NonStateActor.Builder> getNonStateActors() {
      if (_nonStateActors == null)
        _nonStateActors = new LazyList(NonStateActor.Builder.class);
      return _nonStateActors;
    }

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    /**
     * Builder accessor for the pocTypes
     */
    public List<String> getPocTypes() {
      if (_pocTypes == null)
        _pocTypes = new LazyList(String.class);
      return _pocTypes;
    }

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    /**
     * Builder accessor for the axisLabels
     */
    public List<String> getAxisLabels() {
      if (_axisLabels == null)
        _axisLabels = new LazyList(String.class);
      return _axisLabels;
    }

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    /**
     * Builder accessor for the axisLabels
     */
    public void setAxisLabels(List<String> axisLabels) {
      _axisLabels = new LazyList(axisLabels, String.class);
    }

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