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Class Zql.ZQuery

java.lang.Object
   |
   +----Zql.ZQuery

public class ZQuery

extends Object

implements ZStatement, ZExp

ZQuery()

Create a new SELECT statement

addFrom(Vector)

Insert the FROM part of the statement

addGroupBy(ZGroupBy)

Insert a GROUP BY...HAVING clause

addOrderBy(Vector)

Insert an ORDER BY clause

addSelect(Vector)

Insert the SELECT part of the statement

addSet(ZExpression)

Insert a SET clause (generally UNION, INTERSECT or MINUS)

addWhere(ZExp)

Insert a WHERE clause

getFrom()

Get the FROM part of the statement

getGroupBy()

Get the GROUP BY...HAVING part of the statement

getOrderBy()

Get the ORDER BY clause

getSelect()

Get the SELECT part of the statement

getSet()

Get the SET clause (generally UNION, INTERSECT or MINUS)

getWhere()

Get the WHERE part of the statement

isDistinct()

isForUpdate()

toString()

 public ZQuery()

Create a new SELECT statement

 public void addSelect(Vector s)

Insert the SELECT part of the statement

Parameters:

s - A vector of ZSelectItem objects

 public void addFrom(Vector f)

Insert the FROM part of the statement

Parameters:

f - a Vector of ZFromItem objects

 public void addWhere(ZExp w)

Insert a WHERE clause

Parameters:

w - An SQL Expression

 public void addGroupBy(ZGroupBy g)

Insert a GROUP BY...HAVING clause

Parameters:

g - A GROUP BY...HAVING clause

 public void addSet(ZExpression s)

Insert a SET clause (generally UNION, INTERSECT or MINUS)

Parameters:

s - An SQL Expression (generally UNION, INTERSECT or MINUS)

 public void addOrderBy(Vector v)

Insert an ORDER BY clause

Parameters:

v - A vector of ZOrderBy objects

 public Vector getSelect()

Get the SELECT part of the statement

Returns:

A vector of ZSelectItem objects

 public Vector getFrom()

Get the FROM part of the statement

Returns:

A vector of ZFromItem objects

 public ZExp getWhere()

Get the WHERE part of the statement

Returns:

An SQL Expression or sub-query (ZExpression or ZQuery object)

 public ZGroupBy getGroupBy()

Get the GROUP BY...HAVING part of the statement

Returns:

A GROUP BY...HAVING clause

 public ZExpression getSet()

Get the SET clause (generally UNION, INTERSECT or MINUS)

Returns:

An SQL Expression (generally UNION, INTERSECT or MINUS)

 public Vector getOrderBy()

Get the ORDER BY clause

Parameters:

v - A vector of ZOrderBy objects

 public boolean isDistinct()

Returns:

true if it is a SELECT DISTINCT query, false otherwise.

 public boolean isForUpdate()

Returns:

true if it is a FOR UPDATE query, false otherwise.

 public String toString()

Overrides:

toString in class Object

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