net.sf.basedb.core.query
Enum JoinType

java.lang.Object
  java.lang.Enum<JoinType>
      net.sf.basedb.core.query.JoinType

All Implemented Interfaces:

Serializable, Comparable<JoinType>

public enum JoinType
extends Enum<JoinType>

An enumeration used to specify the type of join.

Version:

2.0

Author:

Nicklas

Last modified

$Date: 2009-04-06 14:52:39 +0200 (Mon, 06 Apr 2009) $

Enum Constant Summary

INNER
Use an inner join, ie. only select rows present in both tables.

LEFT
Use a left join, ie. select all rows from the left table and use null if no row is present in the right table.

Field Summary

private String

joinExpression

Method Summary

String	getJoinExpression()
static JoinType	valueOf(String name) Returns the enum constant of this type with the specified name.
static JoinType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INNER

public static final JoinType INNER

Use an inner join, ie. only select rows present in both tables.

LEFT

public static final JoinType LEFT

Use a left join, ie. select all rows from the left table and use null if no row is present in the right table.

Field Detail

joinExpression

private final String joinExpression

Method Detail

values

public static JoinType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (JoinType c : JoinType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static JoinType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getJoinExpression

public String getJoinExpression()