net.sf.basedb.core.query
Class InRestriction

java.lang.Object
  net.sf.basedb.core.query.InRestriction

All Implemented Interfaces:

QueryElement, Restriction

public class InRestriction
extends Object
implements Restriction

Compare if one expression is contained in a set of other expressions: e1 IN (e2[0], e2[1], ...)

Version:

2.0

Author:

Samuel, Nicklas

See Also:

Restrictions.in(Expression, Expression[])

Last modified

$Date: 2010-04-21 11:48:29 +0200 (Wed, 21 Apr 2010) $

Field Summary

private Expression	e1
private Expression[]	e2
private int	hashCode

Constructor Summary

InRestriction(Expression e1, Expression... e2)

Method Summary

boolean	equals(Object other) This expression is equal to another InRestriction if both contains the same main expressions and list of expressions (disregarding order).
Collection<? extends QueryElement>	getChildren() Get the children of this query element or null if it has no children.
int	hashCode()
String	toQl(Query query, DbControl dc) Create a query language string of the query element.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

e1

private final Expression e1

e2

private final Expression[] e2

hashCode

private int hashCode

Constructor Detail

InRestriction

InRestriction(Expression e1,
              Expression... e2)

Method Detail

toQl

public String toQl(Query query,
                   DbControl dc)
            throws BaseException

Description copied from interface: QueryElement

Create a query language string of the query element. Use the Query.getQueryType() method to find out which query language is wanted in case the element requires different syntax for different languages.

Specified by:

toQl in interface QueryElement

Parameters:

query - The query that is about to be executed

dc - The DbControl object used to execute the query

Throws:

BaseException - If there is any other error

getChildren

public Collection<? extends QueryElement> getChildren()

Description copied from interface: QueryElement

Get the children of this query element or null if it has no children. For example the AddExpression has two children, the expression beeing added.

Specified by:

getChildren in interface QueryElement

Returns:

The expressions

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object other)

This expression is equal to another InRestriction if both contains the same main expressions and list of expressions (disregarding order).

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object