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| <h2 title="Interface Expression" class="title">Interface Expression</h2> |
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| <pre>public interface <span class="typeNameLabel">Expression</span> |
| extends java.io.Serializable</pre> |
| <div class="block">Represents a boolean expression tree.</div> |
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| <td class="colFirst"><code>static class </code></td> |
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| <td class="colFirst"><code>default boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/expressions/Expression.html#isEquivalentTo-org.apache.iceberg.expressions.Expression-">isEquivalentTo</a></span>(<a href="../../../../org/apache/iceberg/expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> other)</code> |
| <div class="block">Returns whether this expression will accept the same values as another.</div> |
| </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>default <a href="../../../../org/apache/iceberg/expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/expressions/Expression.html#negate--">negate</a></span>()</code> |
| <div class="block">Returns the negation of this expression, equivalent to not(this).</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/iceberg/expressions/Expression.Operation.html" title="enum in org.apache.iceberg.expressions">Expression.Operation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/expressions/Expression.html#op--">op</a></span>()</code> |
| <div class="block">Returns the operation for an expression node.</div> |
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| <h4>op</h4> |
| <pre><a href="../../../../org/apache/iceberg/expressions/Expression.Operation.html" title="enum in org.apache.iceberg.expressions">Expression.Operation</a> op()</pre> |
| <div class="block">Returns the operation for an expression node.</div> |
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| <h4>negate</h4> |
| <pre>default <a href="../../../../org/apache/iceberg/expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> negate()</pre> |
| <div class="block">Returns the negation of this expression, equivalent to not(this).</div> |
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| <h4>isEquivalentTo</h4> |
| <pre>default boolean isEquivalentTo(<a href="../../../../org/apache/iceberg/expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> other)</pre> |
| <div class="block">Returns whether this expression will accept the same values as another. |
| |
| <p>If this returns true, the expressions are guaranteed to return the same evaluation for the |
| same input. However, if this returns false the expressions may return the same evaluation for |
| the same input. That is, expressions may be equivalent even if this returns false. |
| |
| <p>For best results, rewrite not and bind expressions before calling this method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>other</code> - another expression</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the expressions are equivalent</dd> |
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