net.sf.basedb.core.query
Class BooleanExpression
java.lang.Object
net.sf.basedb.core.query.BooleanExpression
- All Implemented Interfaces:
- Expression, QueryElement
public class BooleanExpression
- extends Object
- implements Expression
A constant boolean expression.
- Since:
- 3.1
- Author:
- Nicklas
- See Also:
Expressions.bool(boolean)
- Last modified
- $Date: 2011-12-02 12:09:46 +0100 (Fri, 02 Dec 2011) $
value
private final boolean value
r
private final Restriction r
BooleanExpression
BooleanExpression(boolean value)
BooleanExpression
BooleanExpression(Restriction r)
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 executeddc
- 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:
- Always null
toString
public String toString()
- Overrides:
toString
in class Object
equals
public boolean equals(Object other)
- This expression is equal to another BooleanExpression if their
values or restrictions are equal.
- Overrides:
equals
in class Object
hashCode
public int hashCode()
- Overrides:
hashCode
in class Object