com.bigdata.bop

Interface Constant.Annotations

All Superinterfaces:

BOp.Annotations

Enclosing class:

Constant<E>

public static interface Constant.Annotations
extends BOp.Annotations

Field Summary

Fields

Modifier and Type	Field and Description
static String	VAR The IVariable which is bound to that constant value (optional).

Fields inherited from interface com.bigdata.bop.BOp.Annotations

BOP_ID, CONTROLLER, DEFAULT_CONTROLLER, DEFAULT_EVALUATION_CONTEXT, DEFAULT_TIMEOUT, EVALUATION_CONTEXT, NAMESPACE, TIMEOUT

Field Detail

VAR

static final String VAR

The IVariable which is bound to that constant value (optional).

BOpContext.bind(IPredicate, IConstraint[], Object, IBindingSet) takes care of propagating the binding onto the variable for solutions which join.

Note: The Var class in bigdata provides a guarantee of reference testing for equality, which is why we can not simply attach the constant to the variable and have the variable report its bound value. *