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<div class="subTitle">uk.ac.starlink.votable</div>
<h2 title="Class FitsPlusTableBuilder" class="title">Class FitsPlusTableBuilder</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li>uk.ac.starlink.votable.FitsPlusTableBuilder</li>
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<pre>public class <span class="typeNameLabel">FitsPlusTableBuilder</span>
extends java.lang.Object
implements uk.ac.starlink.table.TableBuilder, uk.ac.starlink.table.MultiTableBuilder</pre>
<div class="block">Table builder which can read files in 'fits-plus' format (as written
by <a href="../../../../uk/ac/starlink/votable/FitsPlusTableWriter.html" title="class in uk.ac.starlink.votable"><code>FitsPlusTableWriter</code></a>). This looks for a primary header
in the FITS file which contains the VOTMETA header (in fact it is
quite inflexible about what it recognises as this format -
see <a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#isMagic-byte:A-"><code>isMagic(byte[])</code></a>) and tries to interpret the data array as a
1-d array of bytes representing the XML of a VOTable document.
This VOTable document should have one or more TABLE elements with no DATA
content - the table data is got from the extension extension HDUs,
one per table, and they must be BINTABLE extensions matching the
metadata described by the VOTable.
<p>The point of all this is so that you can store VOTables in
the efficient FITS format (it can be mapped if it's on local disk,
which makes table creation practically instantaneous, even for
random access) without sacrificing any of the metadata that you
want to encode in VOTable format.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>27 Aug 2004</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Mark Taylor (Starlink)</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../uk/ac/starlink/votable/FitsPlusTableWriter.html" title="class in uk.ac.starlink.votable"><code>FitsPlusTableWriter</code></a></dd>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#FitsPlusTableBuilder--">FitsPlusTableBuilder</a></span>()</code>
<div class="block">Default constructor.</div>
</td>
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<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#FitsPlusTableBuilder-uk.ac.starlink.fits.WideFits-">FitsPlusTableBuilder</a></span>(uk.ac.starlink.fits.WideFits wide)</code>
<div class="block">Constructor.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#canImport-java.awt.datatransfer.DataFlavor-">canImport</a></span>(java.awt.datatransfer.DataFlavor flavor)</code>
<div class="block">Returns <tt>true</tt> for a flavor with the MIME type "application/fits".</div>
</td>
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<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#getFormatName--">getFormatName</a></span>()</code> </td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#isMagic-byte:A-">isMagic</a></span>(byte[] buffer)</code>
<div class="block">Tests whether a given buffer contains bytes which might be the
first few bytes of a FitsPlus table.</div>
</td>
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<td class="colFirst"><code>uk.ac.starlink.table.StarTable</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#makeStarTable-uk.ac.starlink.util.DataSource-boolean-uk.ac.starlink.table.StoragePolicy-">makeStarTable</a></span>(uk.ac.starlink.util.DataSource datsrc,
boolean wantRandom,
uk.ac.starlink.table.StoragePolicy storagePolicy)</code> </td>
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<td class="colFirst"><code>uk.ac.starlink.table.TableSequence</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#makeStarTables-uk.ac.starlink.util.DataSource-uk.ac.starlink.table.StoragePolicy-">makeStarTables</a></span>(uk.ac.starlink.util.DataSource datsrc,
uk.ac.starlink.table.StoragePolicy storagePolicy)</code> </td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../uk/ac/starlink/votable/FitsPlusTableBuilder.html#streamStarTable-java.io.InputStream-uk.ac.starlink.table.TableSink-java.lang.String-">streamStarTable</a></span>(java.io.InputStream in,
uk.ac.starlink.table.TableSink sink,
java.lang.String pos)</code> </td>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>FitsPlusTableBuilder</h4>
<pre>public FitsPlusTableBuilder()</pre>
<div class="block">Default constructor.</div>
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<h4>FitsPlusTableBuilder</h4>
<pre>public FitsPlusTableBuilder(uk.ac.starlink.fits.WideFits wide)</pre>
<div class="block">Constructor.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>wide</code> - convention for representing extended columns;
use null to avoid use of extended columns</dd>
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<h4>getFormatName</h4>
<pre>public java.lang.String getFormatName()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getFormatName</code> in interface <code>uk.ac.starlink.table.TableBuilder</code></dd>
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<h4>makeStarTable</h4>
<pre>public uk.ac.starlink.table.StarTable makeStarTable(uk.ac.starlink.util.DataSource datsrc,
boolean wantRandom,
uk.ac.starlink.table.StoragePolicy storagePolicy)
throws java.io.IOException</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>makeStarTable</code> in interface <code>uk.ac.starlink.table.TableBuilder</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd>
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<h4>makeStarTables</h4>
<pre>public uk.ac.starlink.table.TableSequence makeStarTables(uk.ac.starlink.util.DataSource datsrc,
uk.ac.starlink.table.StoragePolicy storagePolicy)
throws java.io.IOException</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>makeStarTables</code> in interface <code>uk.ac.starlink.table.MultiTableBuilder</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd>
</dl>
</li>
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<h4>streamStarTable</h4>
<pre>public void streamStarTable(java.io.InputStream in,
uk.ac.starlink.table.TableSink sink,
java.lang.String pos)
throws java.io.IOException</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>streamStarTable</code> in interface <code>uk.ac.starlink.table.TableBuilder</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd>
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<h4>canImport</h4>
<pre>public boolean canImport(java.awt.datatransfer.DataFlavor flavor)</pre>
<div class="block">Returns <tt>true</tt> for a flavor with the MIME type "application/fits".</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>canImport</code> in interface <code>uk.ac.starlink.table.TableBuilder</code></dd>
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<h4>isMagic</h4>
<pre>public static boolean isMagic(byte[] buffer)</pre>
<div class="block">Tests whether a given buffer contains bytes which might be the
first few bytes of a FitsPlus table.
The criterion is that it looks like the start of a FITS header,
and the first few cards look roughly like this:
<pre>
SIMPLE = T
BITPIX = 8
NAXIS = 1
NAXIS1 = ???
VOTMETA = T
</pre></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>buffer</code> - byte buffer containing leading few bytes of data</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if it looks like a FitsPlus file</dd>
</dl>
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