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POIs using the Factory pattern make sense here?
 

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    <p>So I have a PageItem object that I want to possibly reuse elsewhere. I'm in ABC framework.</p> <p>Here's the PageItem interface :</p> <pre><code>public interface PageItem { public abstract String getUrl(); public abstract boolean getIsCurrent(); public abstract PageItem getParent(); public abstract List&lt;PageItem&gt; getPChildren(); public abstract void setParent(PageItem pageItem); public abstract void addChild(PageItem pageItems); public abstract boolean getHasSelectedChild(); } </code></pre> <p>Here's the implementation :</p> <pre><code>public class PageItemImpl implements PageItem { private String title = ""; private String url = ""; private boolean isCurrent = false; private List&lt;PageItem&gt; children = new ArrayList&lt;PageItem&gt;(); private PageItem parent = null; public String getUrl() { return url; } public boolean getIsCurrent() { return isCurrent; } public List&lt;PageItem&gt; getChildren() { return children; } public PageItem getParent() { return parent; } public void setUrl(String url) { this.url = url; } public void setIsCurrent(boolean isCurrent) { this.isCurrent = isCurrent; } public void setParent(PageItem parent) { this.parent = parent; } public void addChild(PageItem pageItem) { this.children.add(pageItem); } public boolean getHasSelectedChild() { return false; } } </code></pre> <p>Here's the factory :</p> <pre><code>public class PageItemFactory { public static PageItem getPageItem(ABCPage page, ABCRequestParams params) throws ABCException { PageItemImpl pageItem = new PageItemABCImpl(); pageItem.setTitle(page.getTitle()); pageItem.setUrl(page.getUrl()); pageItem.setIsCurrent(params.getUrl().equals(page.getUrl()); return pageItem; } } </code></pre> <p>Is that me or it doesn't make sense?</p> <p>PageItemFactory won't be reusable elsewhere since it has references to ABC framework.</p> <p>Should I just make a class that overrides PageItem and use a constructor for ABC specific parameters?</p>
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    1. USmrmuggles
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    1. COWhat layer is the ABCFramework supposed to sit inside? View, Controller, etc.
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      1. USWoot4Moo
    2. COYep that's a basic Factory pattern, (Rename PageItem IPageItem would make it a bit clearer in most other devs eyes). To get the next level of abstraction, you should look at an IOC, (Inversion of Control) pattern implementation such as Dependency Injection.
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      1. USTony Hopkinson
    3. COIn my opinion the factory is not necessary here since the construction of the object is rather simple.
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      1. USAnonymous Coward
 

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