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Union (query directive) - Revision history
2026-04-18T12:01:58Z
Revision history for this page on the wiki
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http://wandora.org/w/index.php?title=Union_(query_directive)&diff=6899&oldid=prev
Olli at 09:50, 20 August 2009
2009-08-20T09:50:30Z
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<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 09:50, 20 August 2009</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Union(Directive d1,Directive d2,...)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Union(Directive d1,Directive d2,...)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Examples ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Following example gets all instances and subclasses of the input topic and concatenates the results. The reason for ''Roles'' directive on line 5 is to remove the default column which will still be present from ''Players'' directive.</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> importPackage(org.wandora.query2);</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> importPackage(org.wandora.topicmap);</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> new Union(</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">  new Instances().as("#instance"),</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">  new Roles("#instance").from(</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">      XTMPSI.SUPERCLASS_SUBCLASS,</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">      XTMPSI.SUBCLASS).whereInputIs(XTMPSI.SUPERCLASS).as("#instance")</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> )</ins></div></td></tr>
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Olli
http://wandora.org/w/index.php?title=Union_(query_directive)&diff=6857&oldid=prev
Olli at 07:43, 20 August 2009
2009-08-20T07:43:29Z
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<p><b>New page</b></p><div>== Description ==<br />
<br />
Joins the results of inner directives by concatenating them. If the results from different directives have different roles, new columns will be added with null values to make roles of each row identical. Duplicate rows are not removed. <br />
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== Constructor ==<br />
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Union(Directive d1,Directive d2,...)</div>
Olli