javatools.db
Class DbParenthesis

java.lang.Object
  |
  +--javatools.db.DbExpr
        |
        +--javatools.db.DbParenthesis

All Implemented Interfaces:

DbTableUser

public class DbParenthesis

extends DbExpr

This expression has the result of putting parenthesis around another expression. i.e. "expr" becomes "( expr )". It should be noted that you won't usually use this class in your application code. Normally the order of evaluation of the SQL is implied by the parethesis in your Java code. i.e.

 DbExpr x = a.and((b.or(c)).and(d))
 

This will automatically retain the Java evaluation order...

 A AND ( (B OR C) AND D)
 

Constructor Summary

DbParenthesis(DbDatabase db, DbExpr expr)
Constructor for the DbParenthesis object

Method Summary

java.lang.String	getQueryString() Gets the queryString attribute of the DbParenthesis object
int	setSqlValues(java.sql.PreparedStatement ps, int i) Sets the sqlValues attribute of the DbParenthesis object
void	usesTables(java.util.Set c) Puts in the passed set all used tables by this expression.

Methods inherited from class javatools.db.DbExpr

and, containsAllStrings, containsAllStrings, count, dateTrunc, equal, greaterThan, greaterThanOrEqual, in, in, isNotNull, isNull, lessThan, lessThanOrEqual, like, lower, max, min, notEqual, notIn, notIn, or, upper, usesTables

Methods inherited from class java.lang.Object

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

Constructor Detail

DbParenthesis

public DbParenthesis(DbDatabase db,
                     DbExpr expr)

Constructor for the DbParenthesis object

Parameters:

db - The database that will be used.

expr - The expression to be put in parenthesis.

Method Detail

setSqlValues

public int setSqlValues(java.sql.PreparedStatement ps,
                        int i)
                 throws java.sql.SQLException,
                        DbException

Sets the sqlValues attribute of the DbParenthesis object

Specified by:

setSqlValues in class DbExpr

Parameters:

ps - The statement.

i - The new sqlValues value

Returns:

Description of the Returned Value

Throws:

java.sql.SQLException - If something goes wrong.

DbException - If something goes wrong.

getQueryString

public java.lang.String getQueryString()
                                throws DbException

Gets the queryString attribute of the DbParenthesis object

Specified by:

getQueryString in class DbExpr

Returns:

The queryString value

Throws:

DbException - If something goes wrong.

usesTables

public void usesTables(java.util.Set c)

Puts in the passed set all used tables by this expression.

Specified by:

usesTables in interface DbTableUser

Overrides:

usesTables in class DbExpr

Parameters:

c - The set to put tables into.