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| <li>概要: </li> |
| <li>嵌套 | </li> |
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| <li>详细资料: </li> |
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| <h2 title="枚举 DataContext.Variable" class="title">枚举 DataContext.Variable</h2> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="java.lang中的类或接口">java.lang.Enum</a><<a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a>></li> |
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| <ul class="inheritance"> |
| <li>org.apache.calcite.DataContext.Variable</li> |
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| </li> |
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| <dt>所有已实现的接口:</dt> |
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| <dt>封闭接口:</dt> |
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| <br> |
| <pre>public static enum <span class="typeNameLabel">DataContext.Variable</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="java.lang中的类或接口">Enum</a><<a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a>></pre> |
| <div class="block">Variable that may be asked for in a call to <a href="../../../org/apache/calcite/DataContext.html#get-java.lang.String-"><code>DataContext.get(java.lang.String)</code></a>.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== ENUM CONSTANT SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="enum.constant.summary"> |
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| </a> |
| <h3>枚举常量概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="枚举常量概要表, 列表枚举常量和解释"> |
| <caption><span>枚举常量</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">枚举常量和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#CANCEL_FLAG">CANCEL_FLAG</a></span></code> |
| <div class="block">A mutable flag that indicates whether user has requested that the |
| current statement be canceled.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#CURRENT_TIMESTAMP">CURRENT_TIMESTAMP</a></span></code> |
| <div class="block">The time at which the current statement started executing.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#LOCAL_TIMESTAMP">LOCAL_TIMESTAMP</a></span></code> |
| <div class="block">The time at which the current statement started executing.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#LOCALE">LOCALE</a></span></code> |
| <div class="block">Locale in which the current statement is executing.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#SPARK_CONTEXT">SPARK_CONTEXT</a></span></code> |
| <div class="block">The Spark engine.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#SQL_ADVISOR">SQL_ADVISOR</a></span></code> |
| <div class="block">Advisor that suggests completion hints for SQL statements.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#STDERR">STDERR</a></span></code> |
| <div class="block">Writer to the standard error (stderr).</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#STDIN">STDIN</a></span></code> |
| <div class="block">Reader on the standard input (stdin).</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#STDOUT">STDOUT</a></span></code> |
| <div class="block">Writer to the standard output (stdout).</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#SYSTEM_USER">SYSTEM_USER</a></span></code> |
| <div class="block">The system user.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#TIME_ZONE">TIME_ZONE</a></span></code> |
| <div class="block">Time zone in which the current statement is executing.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#TIMEOUT">TIMEOUT</a></span></code> |
| <div class="block">Query timeout in milliseconds.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#USER">USER</a></span></code> |
| <div class="block">The query user.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#UTC_TIMESTAMP">UTC_TIMESTAMP</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.summary"> |
| <!-- --> |
| </a> |
| <h3>字段概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="字段概要表, 列表字段和解释"> |
| <caption><span>字段</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">字段和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#camelName">camelName</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="java.lang中的类或接口">Class</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#clazz">clazz</a></span></code> </td> |
| </tr> |
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| </li> |
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| </a> |
| <h3>方法概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释"> |
| <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">静态方法</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">方法和说明</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#get-org.apache.calcite.DataContext-">get</a></span>(<a href="../../../org/apache/calcite/DataContext.html" title="org.apache.calcite中的接口">DataContext</a> dataContext)</code> |
| <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="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#valueOf-java.lang.String-">valueOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> name)</code> |
| <div class="block">返回带有指定名称的该类型的枚举常量。</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/calcite/DataContext.Variable.html#values--">values</a></span>()</code> |
| <div class="block">按照声明该枚举类型的常量的顺序, 返回 |
| 包含这些常量的数组。</div> |
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| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Enum"> |
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| </a> |
| <h3>从类继承的方法 java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="java.lang中的类或接口">Enum</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#compareTo-E-" title="java.lang中的类或接口">compareTo</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#equals-java.lang.Object-" title="java.lang中的类或接口">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#getDeclaringClass--" title="java.lang中的类或接口">getDeclaringClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#hashCode--" title="java.lang中的类或接口">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#name--" title="java.lang中的类或接口">name</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#ordinal--" title="java.lang中的类或接口">ordinal</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#toString--" title="java.lang中的类或接口">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true#valueOf-java.lang.Class-java.lang.String-" title="java.lang中的类或接口">valueOf</a></code></li> |
| </ul> |
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| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>从类继承的方法 java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
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| <!-- ============ ENUM CONSTANT DETAIL =========== --> |
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| </a> |
| <h3>枚举常量详细资料</h3> |
| <a name="UTC_TIMESTAMP"> |
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| <h4>UTC_TIMESTAMP</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> UTC_TIMESTAMP</pre> |
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| <a name="CURRENT_TIMESTAMP"> |
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| <h4>CURRENT_TIMESTAMP</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">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> |
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| <a name="LOCAL_TIMESTAMP"> |
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| <h4>LOCAL_TIMESTAMP</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">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 name="SPARK_CONTEXT"> |
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| <h4>SPARK_CONTEXT</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> SPARK_CONTEXT</pre> |
| <div class="block">The Spark engine. Available if Spark is on the class path.</div> |
| </li> |
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| <a name="CANCEL_FLAG"> |
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| <h4>CANCEL_FLAG</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">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> |
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| <a name="TIMEOUT"> |
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| <h4>TIMEOUT</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">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> |
| </li> |
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| <h4>SQL_ADVISOR</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> SQL_ADVISOR</pre> |
| <div class="block">Advisor that suggests completion hints for SQL statements.</div> |
| </li> |
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| <a name="STDERR"> |
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| <h4>STDERR</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> STDERR</pre> |
| <div class="block">Writer to the standard error (stderr).</div> |
| </li> |
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| <h4>STDIN</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> STDIN</pre> |
| <div class="block">Reader on the standard input (stdin).</div> |
| </li> |
| </ul> |
| <a name="STDOUT"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>STDOUT</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> STDOUT</pre> |
| <div class="block">Writer to the standard output (stdout).</div> |
| </li> |
| </ul> |
| <a name="LOCALE"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>LOCALE</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> LOCALE</pre> |
| <div class="block">Locale in which the current statement is executing. |
| Affects the behavior of functions such as <code>DAYNAME</code> and |
| <code>MONTHNAME</code>. Required; defaults to the root locale if the |
| connection does not specify a locale.</div> |
| </li> |
| </ul> |
| <a name="TIME_ZONE"> |
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| </a> |
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| <h4>TIME_ZONE</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">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> |
| </ul> |
| <a name="USER"> |
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| </a> |
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| <li class="blockList"> |
| <h4>USER</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> USER</pre> |
| <div class="block">The query user. |
| |
| <p>Default value is "sa".</div> |
| </li> |
| </ul> |
| <a name="SYSTEM_USER"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>SYSTEM_USER</h4> |
| <pre>public static final <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> SYSTEM_USER</pre> |
| <div class="block">The system user. |
| |
| <p>Default value is "user.name" from |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/System.html?is-external=true#getProperty-java.lang.String-" title="java.lang中的类或接口"><code>System.getProperty(String)</code></a>.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ FIELD DETAIL =========== --> |
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| </a> |
| <h3>字段详细资料</h3> |
| <a name="camelName"> |
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| <h4>camelName</h4> |
| <pre>public final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> camelName</pre> |
| </li> |
| </ul> |
| <a name="clazz"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>clazz</h4> |
| <pre>public final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="java.lang中的类或接口">Class</a> clazz</pre> |
| </li> |
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| <h3>方法详细资料</h3> |
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| <h4>values</h4> |
| <pre>public static <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a>[] values()</pre> |
| <div class="block">按照声明该枚举类型的常量的顺序, 返回 |
| 包含这些常量的数组。该方法可用于迭代 |
| 常量, 如下所示: |
| <pre> |
| for (DataContext.Variable c : DataContext.Variable.values()) |
| System.out.println(c); |
| </pre></div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>按照声明该枚举类型的常量的顺序返回的包含这些常量的数组</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="valueOf-java.lang.String-"> |
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| </a> |
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| <h4>valueOf</h4> |
| <pre>public static <a href="../../../org/apache/calcite/DataContext.Variable.html" title="org.apache.calcite中的枚举">DataContext.Variable</a> valueOf(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> name)</pre> |
| <div class="block">返回带有指定名称的该类型的枚举常量。 |
| 字符串必须与用于声明该类型的枚举常量的 |
| 标识符<i>完全</i>匹配。(不允许有多余 |
| 的空格字符。)</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>name</code> - 要返回的枚举常量的名称。</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>返回带有指定名称的枚举常量</dd> |
| <dt><span class="throwsLabel">抛出:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="java.lang中的类或接口">IllegalArgumentException</a></code> - 如果该枚举类型没有带有指定名称的常量</dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="java.lang中的类或接口">NullPointerException</a></code> - 如果参数为空值</dd> |
| </dl> |
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| <h4>get</h4> |
| <pre>public <T> T get(<a href="../../../org/apache/calcite/DataContext.html" title="org.apache.calcite中的接口">DataContext</a> dataContext)</pre> |
| <div class="block">Returns the value of this variable in a given data context.</div> |
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| <li>概要: </li> |
| <li>嵌套 | </li> |
| <li><a href="#enum.constant.summary">枚举常量</a> | </li> |
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