public interface Constant extends Expression
Modifier and Type | Method and Description |
---|---|
Type |
getType(TableModel tableModel)
Returns the result type of the expression, evaluated against a given TableModel
|
default boolean |
isConstant()
Returns whether the expression result has a constant value, it means, does not depend on any tuple field
values.
|
default boolean |
isNullable()
Returns whether the result of the expression can be null.
|
toString
Type getType(TableModel tableModel)
Expression
getType
in interface Expression
tableModel
- TableModel to be evaluateddefault boolean isConstant()
Expression
isConstant
in interface Expression
default boolean isNullable()
Expression
isNullable
in interface Expression
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