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package org.apache.tapestry.callback; |
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import org.apache.hivemind.ApplicationRuntimeException; |
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import org.apache.hivemind.util.Defense; |
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import org.apache.tapestry.IComponent; |
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import org.apache.tapestry.IDirect; |
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import org.apache.tapestry.IPage; |
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import org.apache.tapestry.IRequestCycle; |
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public class DirectCallback implements ICallback |
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{ |
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private static final long serialVersionUID = -8888847655917503471L; |
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private String _pageName; |
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private String _componentIdPath; |
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private Object[] _parameters; |
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public DirectCallback(IDirect component, Object[] parameters) |
51 | 0 | { |
52 | 0 | Defense.notNull(component, "component"); |
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54 | 0 | _pageName = component.getPage().getPageName(); |
55 | 0 | _componentIdPath = component.getIdPath(); |
56 | 0 | _parameters = parameters; |
57 | 0 | } |
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public String toString() |
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{ |
61 | 0 | StringBuffer buffer = new StringBuffer("DirectCallback["); |
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63 | 0 | buffer.append(_pageName); |
64 | 0 | buffer.append('/'); |
65 | 0 | buffer.append(_componentIdPath); |
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67 | 0 | if (_parameters != null) |
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{ |
69 | 0 | for (int i = 0; i < _parameters.length; i++) |
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{ |
71 | 0 | buffer.append(i == 0 ? " " : ", "); |
72 | 0 | buffer.append(_parameters[i]); |
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} |
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} |
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76 | 0 | buffer.append(']'); |
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78 | 0 | return buffer.toString(); |
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} |
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public void performCallback(IRequestCycle cycle) |
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{ |
91 | 0 | IPage page = cycle.getPage(_pageName); |
92 | 0 | IComponent component = page.getNestedComponent(_componentIdPath); |
93 | 0 | IDirect direct = null; |
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try |
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{ |
97 | 0 | direct = (IDirect) component; |
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} |
99 | 0 | catch (ClassCastException ex) |
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{ |
101 | 0 | throw new ApplicationRuntimeException(CallbackMessages.componentNotDirect(component), |
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component, null, ex); |
103 | 0 | } |
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105 | 0 | cycle.setListenerParameters(_parameters); |
106 | 0 | direct.trigger(cycle); |
107 | 0 | } |
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} |