(window.webpackJsonp=window.webpackJsonp||[]).push([[320],{884:function(s,e,t){"use strict";t.r(e);var a=t(68),i=Object(a.a)({},(function(){var s=this,e=s.$createElement,t=s._self._c||e;return t("ContentSlotsDistributor",{attrs:{"slot-key":s.$parent.slotKey}},[t("h1",{attrs:{id:"编程-原生接口"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#编程-原生接口"}},[s._v("#")]),s._v(" 编程 - 原生接口")]),s._v(" "),t("h2",{attrs:{id:"依赖"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#依赖"}},[s._v("#")]),s._v(" 依赖")]),s._v(" "),t("ul",[t("li",[s._v("JDK >= 1.8")]),s._v(" "),t("li",[s._v("Maven >= 3.1")])]),s._v(" "),t("h2",{attrs:{id:"安装到本地-maven-库"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#安装到本地-maven-库"}},[s._v("#")]),s._v(" 安装到本地 maven 库")]),s._v(" "),t("p",[s._v("在根目录下运行:")]),s._v(" "),t("blockquote",[t("p",[s._v("mvn clean install -pl session -am -Dmaven.test.skip=true")])]),s._v(" 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"),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br"),t("span",{staticClass:"line-number"},[s._v("3")]),t("br")])])]),s._v(" "),t("li",[t("p",[s._v("测试 insertRecord，不实际写入数据，只将数据传输到 server 即返回。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertRecord(String deviceId, long time, List<String> measurements, List<String> values)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("或")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("  void testInsertRecord(String deviceId, long time, List<String> measurements,\n        List<TSDataType> types, List<Object> values)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br")])])]),s._v(" "),t("li",[t("p",[s._v("测试 insertTablet，不实际写入数据，只将数据传输到 server 即返回。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertTablet(Tablet tablet)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])])])]),s._v(" "),t("h2",{attrs:{id:"示例代码"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#示例代码"}},[s._v("#")]),s._v(" 示例代码")]),s._v(" "),t("p",[s._v("浏览上述接口的详细信息，请参阅代码 "),t("code",[s._v("session/src/main/java/org/apache/iotdb/session/Session.java")])]),s._v(" "),t("p",[s._v("使用上述接口的示例代码在 "),t("code",[s._v("example/session/src/main/java/org/apache/iotdb/SessionExample.java")])]),s._v(" "),t("h2",{attrs:{id:"针对原生接口的连接池"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#针对原生接口的连接池"}},[s._v("#")]),s._v(" 针对原生接口的连接池")]),s._v(" "),t("p",[s._v("我们提供了一个针对原生接口的连接池("),t("code",[s._v("SessionPool")]),s._v(")，使用该接口时，你只需要指定连接池的大小，就可以在使用时从池中获取连接。\n如果超过60s都没得到一个连接的话，那么会打印一条警告日志，但是程序仍将继续等待。")]),s._v(" "),t("p",[s._v("当一个连接被用完后，他会自动返回池中等待下次被使用；\n当一个连接损坏后，他会从池中被删除，并重建一个连接重新执行用户的操作。")]),s._v(" "),t("p",[s._v("对于查询操作：")]),s._v(" "),t("ol",[t("li",[s._v("使用SessionPool进行查询时，得到的结果集是"),t("code",[s._v("SessionDataSet")]),s._v("的封装类"),t("code",[s._v("SessionDataSetWrapper")]),s._v(";")]),s._v(" "),t("li",[s._v("若对于一个查询的结果集，用户并没有遍历完且不再想继续遍历时，需要手动调用释放连接的操作"),t("code",[s._v("closeResultSet")]),s._v(";")]),s._v(" "),t("li",[s._v("若对一个查询的结果集遍历时出现异常，也需要手动调用释放连接的操作"),t("code",[s._v("closeResultSet")]),s._v(".")]),s._v(" "),t("li",[s._v("可以调用 "),t("code",[s._v("SessionDataSetWrapper")]),s._v(" 的 "),t("code",[s._v("getColumnNames()")]),s._v(" 方法得到结果集列名")])]),s._v(" "),t("p",[s._v("使用示例可以参见 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"),t("p",[s._v("用于插入一行数据，需提供数据点的deviceId, time, 所有measurement和相应的value值。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insert(String deviceId, long time, List<String> measurements, List<String> values)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("该方法在0.10版本中方法名发生变化")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertRecord(String deviceId, long time, List<String> measurements, List<String> values)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("h4",{attrs:{id:"insertrowinbatch"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#insertrowinbatch"}},[s._v("#")]),s._v(" insertRowInBatch()")]),s._v(" "),t("p",[s._v("用于插入多行数据，需提供各行数据的deviceId, time, 所有measurement名称和相应的value值。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertRowInBatch(List<String> deviceIds, List<Long> times, List<List<String>> measurementsList,   \n                      List<List<String>> valuesList)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br")])]),t("p",[s._v("该方法在0.10版本中方法名发生变化")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertRecords(List<String> deviceIds, List<Long> times, List<List<String>> measurementsList, \n                   List<List<String>> valuesList)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br")])]),t("h4",{attrs:{id:"insertbatch"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#insertbatch"}},[s._v("#")]),s._v(" insertBatch()")]),s._v(" "),t("p",[s._v('在0.9版本中用于以"RowBatch"结构为单位插入数据')]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertBatch(RowBatch rowBatch)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v('在0.10版本中"RowBatch"类型更改为"Tablet"类型，因此方法名也随之改变。')]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertTablet(Tablet tablet)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("h4",{attrs:{id:"testinsertrow"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#testinsertrow"}},[s._v("#")]),s._v(" testInsertRow()")]),s._v(" "),t("p",[s._v("用于测试插入一行接口的响应")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertRow(String deviceId, long time, List<String> measurements, List<String> values)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("在0.10版本中方法名改为testInsertRecord。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertRecord(String deviceId, long time, List<String> measurements, List<String> values)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("h4",{attrs:{id:"testinsertrowinbatch"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#testinsertrowinbatch"}},[s._v("#")]),s._v(" testInsertRowInBatch()")]),s._v(" "),t("p",[s._v("用于测试插入多行数据接口的响应")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertRowInBatch(List<String> deviceIds, List<Long> times, List<List<String>> measurementsList, \n                          List<List<String>> valuesList)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br")])]),t("p",[s._v("在0.10版本中方法名改为testInsertRecords")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertRecords(List<String> deviceIds, List<Long> times, List<List<String>> measurementsList, \n                       List<List<String>> valuesList)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br")])]),t("h4",{attrs:{id:"testinsertbatch"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#testinsertbatch"}},[s._v("#")]),s._v(" testInsertBatch")]),s._v(" "),t("p",[s._v("用于测试以RowBatch结构为单位插入数据的响应")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertBatch(RowBatch rowBatch)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("在0.10版本中RowBatch类型更改为Tabet类型，因此方法名也随之改变为testInsertTablet")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertTablet(Tablet tablet)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("h3",{attrs:{id:"新增接口"}},[t("a",{staticClass:"header-anchor",attrs:{href:"#新增接口"}},[s._v("#")]),s._v(" 新增接口")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void open(boolean enableRPCCompression)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("开启一个session，并指定是否启用RPC压缩。注意客户端开启PRC压缩的状态需与服务端保持一致。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertRecord(String deviceId, long time, List<String> measurements,\n      List<TSDataType> types, List<Object> values)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br")])]),t("p",[s._v("插入一行数据，该方法和已有的insertRecord()方法不同在于需额外提供每个measurement的类型信息types，且参数values以原始类型的方式提供。写入速度相对于参数为String格式的insertRecord接口要快一些。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertRecords(List<String> deviceIds, List<Long> times, List<List<String>> measurementsList, \n                   List<List<TSDataType>> typesList, List<List<Object>> valuesList)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br")])]),t("p",[s._v("插入多行数据，该方法和已有的insertRecords()方法不同在于需额外提供每个measurement的类型信息typesList，且参数valuesList以原始类型的方式提供。写入速度相对于参数为String格式的insertRecords接口要快一些。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertTablet(Tablet tablet, boolean sorted)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("提供额外的sorted参数，表示tablet是否内部已排好序，如sorted为真则会省去排序的过程从而提升处理速度。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertTablets(Map<String, Tablet> tablets)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("新增insertTablets接口用于写入多个tablet结构，tablets参数为Map<device名, tablet数据>")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void insertTablets(Map<String, Tablet> tablets, boolean sorted)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("带额外sorted参数的insertTablets接口")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void testInsertRecord(String deviceId, long time, List<String> measurements, List<TSDataType> types, \n                      List<Object> values)\nvoid testInsertRecords(List<String> deviceIds, List<Long> times, List<List<String>> measurementsList, \n                      List<List<TSDataType>> typesList, List<List<Object>> valuesList)\nvoid testInsertTablet(Tablet tablet, boolean sorted)\nvoid testInsertTablets(Map<String, Tablet> tablets)\nvoid testInsertTablets(Map<String, Tablet> tablets, boolean sorted)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br"),t("span",{staticClass:"line-number"},[s._v("3")]),t("br"),t("span",{staticClass:"line-number"},[s._v("4")]),t("br"),t("span",{staticClass:"line-number"},[s._v("5")]),t("br"),t("span",{staticClass:"line-number"},[s._v("6")]),t("br"),t("span",{staticClass:"line-number"},[s._v("7")]),t("br")])]),t("p",[s._v("以上接口均为新增的测试rpc响应的方法，用于测试新增的写入接口")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void createTimeseries(String path, TSDataType dataType, TSEncoding encoding, CompressionType compressor, \t\n                      Map<String, String> props, Map<String, String> tags, Map<String, String> attributes, \n                      String measurementAlias)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br"),t("span",{staticClass:"line-number"},[s._v("3")]),t("br")])]),t("p",[s._v("在原来createTimeseries接口的基础上，创建时间序列可以额外指定时间序列的props, tags, attributes和measurementAlias。如果不需要指定以上额外参数可以将参数设为null。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("void createMultiTimeseries(List<String> paths, List<TSDataType> dataTypes, List<TSEncoding> encodings, \n                           List<CompressionType> compressors, List<Map<String, String>> propsList, \n                           List<Map<String, String>> tagsList, List<Map<String, String>> attributesList, \n                           List<String> measurementAliasList)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br"),t("span",{staticClass:"line-number"},[s._v("2")]),t("br"),t("span",{staticClass:"line-number"},[s._v("3")]),t("br"),t("span",{staticClass:"line-number"},[s._v("4")]),t("br")])]),t("p",[s._v("一次性创建多个时间序列，同时也可以指定多个时间序列的props, tags, attributes和measurementAlias。")]),s._v(" "),t("div",{staticClass:"language- line-numbers-mode"},[t("pre",{pre:!0,attrs:{class:"language-text"}},[t("code",[s._v("boolean checkTimeseriesExists(String path)\n")])]),s._v(" "),t("div",{staticClass:"line-numbers-wrapper"},[t("span",{staticClass:"line-number"},[s._v("1")]),t("br")])]),t("p",[s._v("用于检测时间序列是否存在")])])}),[],!1,null,null,null);e.default=i.exports}}]);