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| <h2 title="Class ComparisonPredicateInfo" class="title">Class ComparisonPredicateInfo</h2> |
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| <li><a href="../../../../org/trafodion/sql/udr/TMUDRSerializableObject.html" title="class in org.trafodion.sql.udr">org.trafodion.sql.udr.TMUDRSerializableObject</a></li> |
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| <ul class="inheritance"> |
| <li><a href="../../../../org/trafodion/sql/udr/PredicateInfo.html" title="class in org.trafodion.sql.udr">org.trafodion.sql.udr.PredicateInfo</a></li> |
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| <li>org.trafodion.sql.udr.ComparisonPredicateInfo</li> |
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| <pre>public class <span class="strong">ComparisonPredicateInfo</span> |
| extends <a href="../../../../org/trafodion/sql/udr/PredicateInfo.html" title="class in org.trafodion.sql.udr">PredicateInfo</a></pre> |
| <div class="block">A comparison predicate to be evaluated on a table |
| |
| A predicate that compares a column value to a constant or |
| another value that evaluates to a constant at runtime, |
| like an SQL query parameter.</div> |
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| <h3>Nested classes/interfaces inherited from class org.trafodion.sql.udr.<a href="../../../../org/trafodion/sql/udr/PredicateInfo.html" title="class in org.trafodion.sql.udr">PredicateInfo</a></h3> |
| <code><a href="../../../../org/trafodion/sql/udr/PredicateInfo.EvaluationCode.html" title="enum in org.trafodion.sql.udr">PredicateInfo.EvaluationCode</a>, <a href="../../../../org/trafodion/sql/udr/PredicateInfo.PredOperator.html" title="enum in org.trafodion.sql.udr">PredicateInfo.PredOperator</a></code></li> |
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| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
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| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ComparisonPredicateInfo.html#getColumnNumber()">getColumnNumber</a></strong>()</code> |
| <div class="block">Get the column number of the column in this comparison predicate.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ComparisonPredicateInfo.html#getConstValue()">getConstValue</a></strong>()</code> |
| <div class="block">Return the value, as a string, of the constant in this predicate.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ComparisonPredicateInfo.html#hasAConstantValue()">hasAConstantValue</a></strong>()</code> |
| <div class="block">Return whether this comparison value involves a constant.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/trafodion/sql/udr/ComparisonPredicateInfo.html#serializedLength()">serializedLength</a></strong>()</code> </td> |
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| <h3>Methods inherited from class org.trafodion.sql.udr.<a href="../../../../org/trafodion/sql/udr/PredicateInfo.html" title="class in org.trafodion.sql.udr">PredicateInfo</a></h3> |
| <code><a href="../../../../org/trafodion/sql/udr/PredicateInfo.html#getEvaluationCode()">getEvaluationCode</a>, <a href="../../../../org/trafodion/sql/udr/PredicateInfo.html#getOperator()">getOperator</a>, <a href="../../../../org/trafodion/sql/udr/PredicateInfo.html#isAComparisonPredicate()">isAComparisonPredicate</a></code></li> |
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| <h4>getColumnNumber</h4> |
| <pre>public int getColumnNumber()</pre> |
| <div class="block">Get the column number of the column in this comparison predicate.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Column number.</dd></dl> |
| </li> |
| </ul> |
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| <h4>hasAConstantValue</h4> |
| <pre>public boolean hasAConstantValue()</pre> |
| <div class="block">Return whether this comparison value involves a constant. |
| |
| <p> The method returns whether the comparison predicate is of the form |
| "column" "op" "constant". If it returns false, the predicate |
| compares the column with a parameter or some other value not |
| available to the UDR. Predicates that do not involve a constant |
| cannot be evaluated in the UDR itself, since the comparison value |
| is not available to the UDR. They can be evaluated on a table-valued |
| input, however.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>true if the comparison is with a constant, false otherwise</dd></dl> |
| </li> |
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| <h4>getConstValue</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getConstValue()</pre> |
| <div class="block">Return the value, as a string, of the constant in this predicate. |
| |
| <p> This returns the value, using SQL syntax, of the constant involved |
| in the comparison predicate. It throws an exception if method |
| hasAConstantValue() would return false.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>Value of the constant in this comparison predicate.</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../org/trafodion/sql/udr/ComparisonPredicateInfo.html#hasAConstantValue()"><code>hasAConstantValue()</code></a></dd></dl> |
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| <pre>public int serializedLength() |
| throws <a href="../../../../org/trafodion/sql/udr/UDRException.html" title="class in org.trafodion.sql.udr">UDRException</a></pre> |
| <dl><dt><span class="strong">Throws:</span></dt> |
| <dd><code><a href="../../../../org/trafodion/sql/udr/UDRException.html" title="class in org.trafodion.sql.udr">UDRException</a></code></dd></dl> |
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