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| <li>Summary: </li> |
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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite</a></div> |
| <h2 title="Enum DataContext.Variable" class="title">Enum DataContext.Variable</h2> |
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| <li>java.lang.Object</li> |
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| <li>java.lang.Enum<<a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a>></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.DataContext.Variable</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><code>java.io.Serializable</code>, <code>java.lang.Comparable<<a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a>></code></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing interface:</dt> |
| <dd><a href="DataContext.html" title="interface in org.apache.calcite">DataContext</a></dd> |
| </dl> |
| <hr> |
| <pre>public static enum <span class="typeNameLabel">DataContext.Variable</span> |
| extends java.lang.Enum<<a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a>></pre> |
| <div class="block">Variable that may be asked for in a call to <a href="DataContext.html#get(java.lang.String)"><code>DataContext.get(java.lang.String)</code></a>.</div> |
| </li> |
| </ul> |
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| <!-- =========== ENUM CONSTANT SUMMARY =========== --> |
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| </a> |
| <h3>Enum Constant Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Enum Constants</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Enum Constant</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#CANCEL_FLAG">CANCEL_FLAG</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">A mutable flag that indicates whether user has requested that the |
| current statement be canceled.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#CURRENT_TIMESTAMP">CURRENT_TIMESTAMP</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The time at which the current statement started executing.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#LOCAL_TIMESTAMP">LOCAL_TIMESTAMP</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The time at which the current statement started executing.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#SPARK_CONTEXT">SPARK_CONTEXT</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The Spark engine.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#SQL_ADVISOR">SQL_ADVISOR</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Advisor that suggests completion hints for SQL statements.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#STDERR">STDERR</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Writer to the standard error (stderr).</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#STDIN">STDIN</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Reader on the standard input (stdin).</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#STDOUT">STDOUT</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Writer to the standard output (stdout).</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#SYSTEM_USER">SYSTEM_USER</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The system user.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#TIME_ZONE">TIME_ZONE</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Time zone in which the current statement is executing.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#TIMEOUT">TIMEOUT</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Query timeout in milliseconds.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#USER">USER</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The query user.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#UTC_TIMESTAMP">UTC_TIMESTAMP</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#camelName">camelName</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.Class</code></td> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colSecond" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,java.lang.Class)">Variable</a></span>​(java.lang.String camelName, |
| java.lang.Class clazz)</code></th> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><T> T</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#get(org.apache.calcite.DataContext)">get</a></span>​(<a href="DataContext.html" title="interface in org.apache.calcite">DataContext</a> dataContext)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the value of this variable in a given data context.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#valueOf(java.lang.String)">valueOf</a></span>​(java.lang.String name)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the enum constant of this type with the specified name.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a>[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#values()">values</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared.</div> |
| </td> |
| </tr> |
| </table> |
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| </a> |
| <h3>Methods inherited from class java.lang.Enum</h3> |
| <code>clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf</code></li> |
| </ul> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>getClass, notify, notifyAll, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ ENUM CONSTANT DETAIL =========== --> |
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| <h3>Enum Constant Detail</h3> |
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| <h4>UTC_TIMESTAMP</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> UTC_TIMESTAMP</pre> |
| </li> |
| </ul> |
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| <h4>CURRENT_TIMESTAMP</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> CURRENT_TIMESTAMP</pre> |
| <div class="block">The time at which the current statement started executing. In |
| milliseconds after 1970-01-01 00:00:00, UTC. Required.</div> |
| </li> |
| </ul> |
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| <h4>LOCAL_TIMESTAMP</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> LOCAL_TIMESTAMP</pre> |
| <div class="block">The time at which the current statement started executing. In |
| milliseconds after 1970-01-01 00:00:00, in the time zone of the current |
| statement. Required.</div> |
| </li> |
| </ul> |
| <a id="SPARK_CONTEXT"> |
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| <h4>SPARK_CONTEXT</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> SPARK_CONTEXT</pre> |
| <div class="block">The Spark engine. Available if Spark is on the class path.</div> |
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| </ul> |
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| </a> |
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| <h4>CANCEL_FLAG</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> CANCEL_FLAG</pre> |
| <div class="block">A mutable flag that indicates whether user has requested that the |
| current statement be canceled. Cancellation may not be immediate, but |
| implementations of relational operators should check the flag fairly |
| frequently and cease execution (e.g. by returning end of data).</div> |
| </li> |
| </ul> |
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| </a> |
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| <h4>TIMEOUT</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> TIMEOUT</pre> |
| <div class="block">Query timeout in milliseconds. |
| When no timeout is set, the value is 0 or not present.</div> |
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| <h4>SQL_ADVISOR</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> SQL_ADVISOR</pre> |
| <div class="block">Advisor that suggests completion hints for SQL statements.</div> |
| </li> |
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| </a> |
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| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> STDERR</pre> |
| <div class="block">Writer to the standard error (stderr).</div> |
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| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> STDIN</pre> |
| <div class="block">Reader on the standard input (stdin).</div> |
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| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> STDOUT</pre> |
| <div class="block">Writer to the standard output (stdout).</div> |
| </li> |
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| <h4>TIME_ZONE</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> TIME_ZONE</pre> |
| <div class="block">Time zone in which the current statement is executing. Required; |
| defaults to the time zone of the JVM if the connection does not specify a |
| time zone.</div> |
| </li> |
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| <h4>USER</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> USER</pre> |
| <div class="block">The query user. |
| |
| <p>Default value is "sa".</div> |
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| <h4>SYSTEM_USER</h4> |
| <pre>public static final <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> SYSTEM_USER</pre> |
| <div class="block">The system user. |
| |
| <p>Default value is "user.name" from |
| <code>System.getProperty(String)</code>.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <h4>camelName</h4> |
| <pre>public final java.lang.String camelName</pre> |
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| <h4>clazz</h4> |
| <pre>public final java.lang.Class clazz</pre> |
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| <h4>Variable</h4> |
| <pre>private Variable​(java.lang.String camelName, |
| java.lang.Class clazz)</pre> |
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| <h4>values</h4> |
| <pre class="methodSignature">public static <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a>[] values()</pre> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared. This method may be used to iterate |
| over the constants as follows: |
| <pre> |
| for (DataContext.Variable c : DataContext.Variable.values()) |
| System.out.println(c); |
| </pre></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array containing the constants of this enum type, in the order they are declared</dd> |
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| <h4>valueOf</h4> |
| <pre class="methodSignature">public static <a href="DataContext.Variable.html" title="enum in org.apache.calcite">DataContext.Variable</a> valueOf​(java.lang.String name)</pre> |
| <div class="block">Returns the enum constant of this type with the specified name. |
| The string must match <i>exactly</i> an identifier used to declare an |
| enum constant in this type. (Extraneous whitespace characters are |
| not permitted.)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the enum constant to be returned.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the enum constant with the specified name</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.IllegalArgumentException</code> - if this enum type has no constant with the specified name</dd> |
| <dd><code>java.lang.NullPointerException</code> - if the argument is null</dd> |
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| <h4>get</h4> |
| <pre class="methodSignature">public <T> T get​(<a href="DataContext.html" title="interface in org.apache.calcite">DataContext</a> dataContext)</pre> |
| <div class="block">Returns the value of this variable in a given data context.</div> |
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