/// <summary>Initializes the map-part of the job with the appropriate input settings.
/// </summary>
/// <param name="job">The job</param>
/// <param name="inputClass">
/// the class object implementing DBWritable, which is the
/// Java object holding tuple fields.
/// </param>
/// <param name="inputQuery">
/// the input query to select fields. Example :
/// "SELECT f1, f2, f3 FROM Mytable ORDER BY f1"
/// </param>
/// <param name="inputCountQuery">
/// the input query that returns the number of records in
/// the table.
/// Example : "SELECT COUNT(f1) FROM Mytable"
/// </param>
/// <seealso cref="DBInputFormat{T}.SetInput(Org.Apache.Hadoop.Mapred.JobConf, System.Type{T}, string, string, string, string[])
/// "/>
public static void SetInput(JobConf job, Type inputClass, string inputQuery, string
inputCountQuery)
{
job.SetInputFormat(typeof(DBInputFormat));
DBConfiguration dbConf = new DBConfiguration(job);
dbConf.SetInputClass(inputClass);
dbConf.SetInputQuery(inputQuery);
dbConf.SetInputCountQuery(inputCountQuery);
}
/// <summary>Initializes the map-part of the job with the appropriate input settings.
/// </summary>
/// <param name="job">The job</param>
/// <param name="inputClass">
/// the class object implementing DBWritable, which is the
/// Java object holding tuple fields.
/// </param>
/// <param name="tableName">The table to read data from</param>
/// <param name="conditions">
/// The condition which to select data with, eg. '(updated >
/// 20070101 AND length > 0)'
/// </param>
/// <param name="orderBy">the fieldNames in the orderBy clause.</param>
/// <param name="fieldNames">The field names in the table</param>
/// <seealso cref="DBInputFormat{T}.SetInput(Org.Apache.Hadoop.Mapred.JobConf, System.Type{T}, string, string)
/// "/>
public static void SetInput(JobConf job, Type inputClass, string tableName, string
conditions, string orderBy, params string[] fieldNames)
{
job.SetInputFormat(typeof(DBInputFormat));
DBConfiguration dbConf = new DBConfiguration(job);
dbConf.SetInputClass(inputClass);
dbConf.SetInputTableName(tableName);
dbConf.SetInputFieldNames(fieldNames);
dbConf.SetInputConditions(conditions);
dbConf.SetInputOrderBy(orderBy);
}
