本文整理了Java中io.vertx.ext.sql.SQLConnection.querySingle()方法的一些代码示例，展示了SQLConnection.querySingle()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。SQLConnection.querySingle()方法的具体详情如下：
包路径：io.vertx.ext.sql.SQLConnection
类名称：SQLConnection
方法名：querySingle

SQLConnection.querySingle介绍

暂无

代码示例

代码示例来源：origin: vert-x3/vertx-rx

/**
 * Execute a one shot SQL statement that returns a single SQL row. This method will reduce the boilerplate code by
 * getting a connection from the pool (this object) and return it back after the execution. Only the first result
 * from the result set is returned.
 * @param sql the statement to execute
 * @param handler the result handler
 * @return self
 */
public io.vertx.rxjava.ext.sql.SQLOperations querySingle(String sql, Handler<AsyncResult<JsonArray>> handler) { 
 delegate.querySingle(sql, handler);
 return this;
}

代码示例来源：origin: io.vertx/vertx-rx-java

/**
 * Execute a one shot SQL statement that returns a single SQL row. This method will reduce the boilerplate code by
 * getting a connection from the pool (this object) and return it back after the execution. Only the first result
 * from the result set is returned.
 * @param sql the statement to execute
 * @param handler the result handler
 * @return self
 */
public io.vertx.rxjava.ext.sql.SQLOperations querySingle(String sql, Handler<AsyncResult<JsonArray>> handler) { 
 delegate.querySingle(sql, handler);
 return this;
}

代码示例来源：origin: io.vertx/vertx-lang-groovy

public static io.vertx.ext.sql.SQLOperations querySingle(io.vertx.ext.sql.SQLConnection j_receiver, java.lang.String sql, io.vertx.core.Handler<io.vertx.core.AsyncResult<java.util.List<Object>>> handler) {
 io.vertx.core.impl.ConversionHelper.fromObject(j_receiver.querySingle(sql,
  handler != null ? new io.vertx.core.Handler<io.vertx.core.AsyncResult<io.vertx.core.json.JsonArray>>() {
  public void handle(io.vertx.core.AsyncResult<io.vertx.core.json.JsonArray> ar) {
   handler.handle(ar.map(event -> io.vertx.core.impl.ConversionHelper.fromJsonArray(event)));
  }
 } : null));
 return j_receiver;
}
public static io.vertx.ext.sql.SQLOperations querySingleWithParams(io.vertx.ext.sql.SQLConnection j_receiver, java.lang.String sql, java.util.List<Object> arguments, io.vertx.core.Handler<io.vertx.core.AsyncResult<java.util.List<Object>>> handler) {