org.apache.storm.jdbc.common

Class Column<T>

java.lang.Object

org.apache.storm.jdbc.common.Column<T>

All Implemented Interfaces:

Serializable

public class Column<T>
extends Object
implements Serializable

A database table can be defined as a list of rows and each row can be defined as a list of columns where each column instance has a name, a value and a type. This class represents an instance of a column in a database row. For example if we have the following table named user:

  ____________________________
 |    UserId  |   UserName    |
 |      1     |    Foo        |
 |      2     |    Bar        |
  ----------------------------
 

The following class can be used to represent the data in the table as

> rows = new ArrayList>();
 List row1 = Lists.newArrayList(new Column("UserId", 1, Types.INTEGER), new Column("UserName", "Foo", Types.VARCHAR))
 List row1 = Lists.newArrayList(new Column("UserId", 2, Types.INTEGER), new Column("UserName", "Bar", Types.VARCHAR))

 rows.add(row1)
 rows.add(row2)
 ]]>
 

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Column(String columnName, int sqlType)
Column(String columnName, T val, int sqlType)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	getColumnName()
int	getSqlType()
T	getVal()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Column

public Column(String columnName,
              T val,
              int sqlType)

Column

public Column(String columnName,
              int sqlType)

Method Detail

getColumnName

public String getColumnName()

getVal

public T getVal()

getSqlType

public int getSqlType()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object