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| <div class="subTitle">org.trafodion.sql.udr</div> |
| <h2 title="Class ProvenanceInfo" class="title">Class ProvenanceInfo</h2> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
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| <li>org.trafodion.sql.udr.ProvenanceInfo</li> |
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| <pre>public class <span class="strong">ProvenanceInfo</span> |
| extends <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Describes where an output column is coming from. |
| |
| <p> Points to input table and input column number that is the |
| source of a column. This must only be used if the result column |
| always has the exact same value as the current value of the |
| corresponding input column.</div> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../org/trafodion/sql/udr/ColumnInfo.html#getProvenance()"><code>ColumnInfo.getProvenance()</code></a>, |
| <a href="../../../../org/trafodion/sql/udr/ColumnInfo.html#setProvenance(org.trafodion.sql.udr.ProvenanceInfo)"><code>ColumnInfo.setProvenance(ProvenanceInfo)</code></a>, |
| <a href="../../../../org/trafodion/sql/udr/UDRInvocationInfo.html#addPassThruColumns()"><code>UDRInvocationInfo.addPassThruColumns()</code></a></dd></dl> |
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| <td class="colOne"><code><strong><a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html#ProvenanceInfo()">ProvenanceInfo</a></strong>()</code> |
| <div class="block">Default constructor, generates unspecified provenance.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html#ProvenanceInfo(int,%20int)">ProvenanceInfo</a></strong>(int inputTableNum, |
| int inputColNum)</code> |
| <div class="block">Constructor to link an output column to a specific input column</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html#ProvenanceInfo(org.trafodion.sql.udr.ProvenanceInfo)">ProvenanceInfo</a></strong>(<a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html" title="class in org.trafodion.sql.udr">ProvenanceInfo</a> p)</code> |
| <div class="block">Copy constructor.</div> |
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| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html#getInputColumnNum()">getInputColumnNum</a></strong>()</code> |
| <div class="block">Get the input column number.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html#getInputTableNum()">getInputTableNum</a></strong>()</code> |
| <div class="block">Get the input table number.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html#isFromInputTable()">isFromInputTable</a></strong>()</code> |
| <div class="block">Test whether the column comes from any table-valued input.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html#isFromInputTable(int)">isFromInputTable</a></strong>(int inputTableNum)</code> |
| <div class="block">Test whether the column comes from any or from a specific table-valued input.</div> |
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| <h4>ProvenanceInfo</h4> |
| <pre>public ProvenanceInfo()</pre> |
| <div class="block">Default constructor, generates unspecified provenance.</div> |
| </li> |
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| <h4>ProvenanceInfo</h4> |
| <pre>public ProvenanceInfo(<a href="../../../../org/trafodion/sql/udr/ProvenanceInfo.html" title="class in org.trafodion.sql.udr">ProvenanceInfo</a> p)</pre> |
| <div class="block">Copy constructor.</div> |
| </li> |
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| <a name="ProvenanceInfo(int, int)"> |
| <!-- --> |
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| <h4>ProvenanceInfo</h4> |
| <pre>public ProvenanceInfo(int inputTableNum, |
| int inputColNum)</pre> |
| <div class="block">Constructor to link an output column to a specific input column |
| |
| <p> This constructor can be used to produce a "passthru column". An easier |
| way to do this is the UDRInvocationInfo::addPassThruColumns() method.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>inputTableNum</code> - Input table number (0 for a TMUDF with a single |
| table-valued input, the most common case).</dd><dd><code>inputColNum</code> - Column number in intput table "inputTableNum" |
| that is the source of the output column to be |
| produced.</dd></dl> |
| </li> |
| </ul> |
| </li> |
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| <h4>getInputTableNum</h4> |
| <pre>public int getInputTableNum()</pre> |
| <div class="block">Get the input table number.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Input table number.</dd></dl> |
| </li> |
| </ul> |
| <a name="getInputColumnNum()"> |
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| <h4>getInputColumnNum</h4> |
| <pre>public int getInputColumnNum()</pre> |
| <div class="block">Get the input column number.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Input column number.</dd></dl> |
| </li> |
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| <pre>public boolean isFromInputTable(int inputTableNum)</pre> |
| <div class="block">Test whether the column comes from any or from a specific table-valued input.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>inputTableNum</code> - -1 to test for any table-valued input, or a specific |
| input table number.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>true if the provenance indicates a column that comes from the |
| specified input table(s), false otherwise</dd></dl> |
| </li> |
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| <pre>public boolean isFromInputTable()</pre> |
| <div class="block">Test whether the column comes from any table-valued input.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>true if the provenance indicates a column that comes from |
| some input table</dd></dl> |
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