Interface PropertyIsNull

  • All Superinterfaces:
    All Known Implementing Classes:
    IsNullImpl, NullFilterImpl

    public interface PropertyIsNull
    extends Filter
    Filter operator that checks if an expression's value is null. A null is equivalent to no value present. The value 0 is a valid value and is not considered null.
    GeoAPI 2.0
    Chris Dillard (SYS Technologies)
    • Method Detail

      • getExpression

        Expression getExpression()
        Returns the expression whose value will be checked for null.