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| <font face="Verdana, Arial, Helvetica" size="+3"><b>jdt core - Breaking API changes from R2.1 to R3.0</b></font> |
| <br><font face="Arial, Helvetica, sans-serif" size="-2" color="#8080ff">java development tooling core</font></td> |
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| This document lists the breaking API changes that occured between R2.1 and R3.0 and how to migrate from the R2.1 API to |
| the R3.0 API. |
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| <li>(in progress) <code>IWorkingCopy</code> now extends <code>ICompilationUnit</code> |
| (see <a href="http://bugs.eclipse.org/bugs/show_bug.cgi?id=36987 ">bug 36987 </a>) |
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| Historically, <code>IWorkingCopy</code> gathered all working copy concerns, |
| and <code>ICompilationUnit</code> implement this interface, though only the |
| factory method makes sense for them; thus their implementation of the working |
| copy features do nothing relevant to clients. <code>IWorkingCopy</code> also |
| implements the spec'ed factory method, but it doesn't work for these. |
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| Clients using <code>IWorkingCopy</code> and <code>ICompilationUnit</code> can |
| adapt to this change by referencing <code>IWorkingCopy</code> instead of |
| <code>ICompilationUnit</code> when a working copy is needed. |
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| </li> |
| <li>(in progress) Factory methods that create <code>IWorkingCopies</code> (i.e. |
| <code>getWorkingCopy</code> and <code>getSharedWorkingCopy</code>) now return |
| an <code>IWorkingCopy</code> instead of an <code>IJavaElement</code>. |
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| Working copies were initialy designed to be editable elements on any <code>IJavaElement</code>. |
| Pratice showed that they were used only to edit <code>ICompilationUnit</code>. To avoid |
| downcasting to <code>IWorkingCopy</code>, the factory methods now return an |
| <code>IWorkingCopy</code>. |
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| Clients using factory methods to create working copies can now remove the cast from |
| <code>IJavaElement</code> to <code>IWorkingCopy</code>. |
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