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annotate m-toolbox/html_help/help/ug/collection_objects_content.html @ 27:29276498ebdb database-connection-manager

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Remove LTPDARepositoryManager implementation * * * Remove GUI helper
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 <p>
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2 Collection objects serve as merely a wrapper for a cell-array of LTPDA User Objects. The point of this is to provide
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3 a way to put together user objects of different classes in to a collection which can be saved/loaded/submitted/retrieved, etc.
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4 </p>
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5 <p>
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6 You can create a <tt>collection</tt> object like:
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7 <div class="fragment"><pre>
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8 >> c = collection
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Daniele Nicolodi <nicolodi@science.unitn.it>
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9 ---- collection 1 ----
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Daniele Nicolodi <nicolodi@science.unitn.it>
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10 name: none
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11 num objs: 0
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12 description:
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13 UUID: a339a156-956b-4657-96ef-9ea4feef8101
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14 ----------------------
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15
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16 </pre></div>
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17 You can then add objects to the collection by doing:
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18 <div class="fragment"><pre>
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19 >> c.addObjects(ao(1))
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20 M: running ao/ao
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21 M: constructing from values
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22 M: running collection/addObjects
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23 M: running ao/char
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24 ---- collection 1 ----
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Daniele Nicolodi <nicolodi@science.unitn.it>
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25 name: none
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26 num objs: 1
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27 01: ao | None/cdata(Ndata=[1x1])
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28 description:
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29 UUID: c1f0200f-ad98-4fd6-beae-2dcdabb33515
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30 ----------------------
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31
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32 </pre></div>
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33 or
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34 <div class="fragment"><pre>
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35 >> c.addObjects(pzmodel(1, 10, 100), mfir())
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36 M: running collection/addObjects
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Daniele Nicolodi <nicolodi@science.unitn.it>
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37 M: running ao/char
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 ---- collection 1 ----
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39 name: none
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40 num objs: 3
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41 01: ao | None/cdata(Ndata=[1x1])
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42 02: pzmodel | pzmodel(None)
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43 03: mfir | none(fs=, ntaps=0.00, a=[])
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44 description:
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45 UUID: e7f02380-5650-4788-b819-f7fa7ee50a7d
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46 ----------------------
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47
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48 </pre></div>
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49 </p>
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50 <p>
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51 You can then extract objects from the collection using <tt>getObjectAtIndex</tt> or get an array of all
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52 objects of a particular class using <tt>getObjectsOfClass</tt>. Objects can be removed from the collection using
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Daniele Nicolodi <nicolodi@science.unitn.it>
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53 <tt>removeObjectAtIndex</tt>.
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54 </p>
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55 <p>
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56 Since a <tt>collection</tt> object is an LTPDA User Object, it has history tracking capabilities. That means that everytime you
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57 add or remove an object to/from the collection, a history step is added. For example, the history of our collection above looks like:
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58 <img src="images/collection_history.png" alt="Collection history" border="3">
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59 </p>