本文整理了Java中org.pentaho.di.core.database.Database.getFirstRows()方法的一些代码示例，展示了Database.getFirstRows()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。Database.getFirstRows()方法的具体详情如下：
包路径：org.pentaho.di.core.database.Database
类名称：Database
方法名：getFirstRows

Database.getFirstRows介绍

[英]Get the first rows from a table (for preview)
[中]

代码示例

代码示例来源：origin: pentaho/pentaho-kettle

public List<Object[]> getFirstRows( String table_name, int limit ) throws KettleDatabaseException {
 return getFirstRows( table_name, limit, null );
}

代码示例来源：origin: pentaho/pentaho-kettle

public void run( IProgressMonitor monitor ) throws InvocationTargetException, InterruptedException {
  db = new Database( Spoon.loggingObject, dbMeta );
  try {
   db.connect();
   if ( limit > 0 ) {
    db.setQueryLimit( limit );
   }
   rows = db.getFirstRows( tableName, limit, new ProgressMonitorAdapter( monitor ) );
   rowMeta = db.getReturnRowMeta();
  } catch ( KettleException e ) {
   throw new InvocationTargetException( e, "Couldn't find any rows because of an error :" + e.toString() );
  } finally {
   db.disconnect();
  }
 }
};