org.apache.hadoop.mapreduce.lib.db

クラス DateSplitter

java.lang.Object

org.apache.hadoop.mapreduce.lib.db.IntegerSplitter

org.apache.hadoop.mapreduce.lib.db.DateSplitter

すべての実装されたインタフェース:

DBSplitter

直系の既知のサブクラス:

OracleDateSplitter

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class DateSplitter
extends IntegerSplitter

Implement DBSplitter over date/time values. Make use of logic from IntegerSplitter, since date/time are just longs in Java.

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
DateSplitter()

メソッドのサマリー

修飾子とタイプ	メソッドと説明
protected String	dateToString(Date d) Given a Date 'd', format it as a string for use in a SQL date comparison operation.
List<InputSplit>	split(Configuration conf, ResultSet results, String colName) Given a ResultSet containing one record (and already advanced to that record) with two columns (a low value, and a high value, both of the same type), determine a set of splits that span the given values.

クラスから継承されたメソッド java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

コンストラクタの詳細

DateSplitter

public DateSplitter()

メソッドの詳細

split

public List<InputSplit> split(Configuration conf,
                              ResultSet results,
                              String colName)
                       throws SQLException

インタフェースからコピーされた説明: DBSplitter

Given a ResultSet containing one record (and already advanced to that record) with two columns (a low value, and a high value, both of the same type), determine a set of splits that span the given values.

定義:

split インタフェース内 DBSplitter

オーバーライド:

split クラス内 IntegerSplitter

例外:

SQLException

dateToString

protected String dateToString(Date d)

Given a Date 'd', format it as a string for use in a SQL date comparison operation.

パラメータ:

d - the date to format.

戻り値:

the string representing this date in SQL with any appropriate quotation characters, etc.