Java Reference
In-Depth Information
Table 8.8 Methods of the
Query
class that return a
ValueExp
object indicating an attribute value
to be used in a query expression.
(continued)
Method
Return type
Description
Returns a
ValueExp
indicating a
float
value
value( float )
ValueExp
Returns a
ValueExp
indicating a
int
value
value( int )
ValueExp
Returns a
ValueExp
indicating a
long
value
value( long )
ValueExp
Returns a
ValueExp
indicating a
Number
value
value( java.lang.Number )
ValueExp
Returns a
ValueExp
indicating a
String
value
value( String )
ValueExp
Finally, Table 8.9 shows the methods used to create objects that can be used to
form more complex query expressions. Arguments to these methods are
Value-
Exp
objects—indicating that an expression is being created between two values.
Table 8.9 Methods of the
Query
class that create
QueryExp
objects (or subclasses) that can be
used in more complex query expressions.
Method
Return type
Description
Creates an expression that means one value is
between two other values
between( ValueExp,
ValueExp, ValueExp )
QueryExp
Creates a new
ValueExp
by dividing the first
Value-
Exp
by the second
div( ValueExp,
ValueExp)
ValueExp
Creates a new
ValueExp
by subtracting the second
ValueExp
from the first
minus( ValueExp,
ValueExp)
ValueExp
Creates a new
ValueExp
by adding the first
Value-
Exp
to the second
plus( ValueExp,
ValueExp)
ValueExp
Creates a new
ValueExp
by multiplying the first
ValueExp
by the second
times( ValueExp,
ValueExp)
ValueExp
Creates an expression that means the first
ValueExp
should be equal to the second
eq( ValueExp,
ValueExp)
QueryExp
Creates an expression that means the first
ValueExp
should be greater than or equal to the second
geq( ValueExp,
ValueExp)
QueryExp
Creates an expression that means the first
ValueExp
should be greater than the second
gt( ValueExp,
ValueExp)
QueryExp
Creates an expression that means the first
ValueExp
should be in the list of following
ValueExp
objects
in( ValueExp,
ValueExp[])
QueryExp
Creates an expression that means the first
ValueExp
should less than or equal to the second
leq( ValueExp,
ValueExp)
QueryExp
