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1 <!DOCTYPE html PUBLIC "-//w3c//dtd html 4.0 transitional//en">
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2 <html><head>
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3 <meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type">
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4 <meta content="IBM" name="Author">
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5 <meta content="Mozilla/4.75 [en] (Windows NT 5.0; U) [Netscape]" name="GENERATOR"><title>text infrastructure</title></head>
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6
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7 <body>
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8 <p>Provides a framework for creating and manipulating text documents.</p>
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9 <h3>Package Specification</h3>
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10 <p><tt>IDocument</tt> is the major text
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11 model abstraction. It provides content management, position management using
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12 position categories, document partition management, and change notification.
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13 In order to be notified about document changes, an object must implements <tt>IDocumentListener
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14 </tt>and must be registered with the document. <tt>Position</tt>
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15 updating in responds to a document change is performed by implementers of <tt>IDocumentPositionUpdater</tt>.
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16 Partition updating in responds to a document change is performed by implements
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17 of <tt>IDocumentPartitioner</tt>. In order
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18 to be notified about document partition changes, objects must implement <tt>IDocumentParititoningListener</tt>
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19 and must be registered with the document.</p>
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20 <p>The package contains default implementations for document position updaters
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21 and for documents. <tt>AbstractDocument</tt>
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22 uses <tt>ITextStorage</tt> for storing
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23 and managing its content and <tt>ILineTracker</tt>
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24 to maintain a line structure of its content. As defaults a gap text implementation
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25 of <tt>ITextStore</tt> is provided, together
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26 with a line tracker understanding the three standard line delimiters ("\r",
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27 "\n", "\r\n") and a line tracker which can be freely configured
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28 to consider any given set of strings as valid line delimiters. </p>
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29 <p></p>
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30 </body></html> |
