Constraint

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org.odbms
Interface Constraint

public interface Constraint

constraint for a single query node.

A Constraint is associated with one single Query node - a single member of a class.

Constraints are constructed by calling Query.constrain().

Constraints can be joined with the methods and() and or().

The following mutual exclusive functions set the evaluation mode. The subsequent call prevails:
identity(), equal(), greater(), greaterOrEqual(), smaller(), smallerOrEqual(), like(), contains()

is(), and not() are also mutually exclusive.

Method Summary

Constraint and(Constraint andWith)
          links two Constraints for AND evaluation

Constraint contains()
          sets the evaluation mode to containment comparison

Constraint equal()
          sets the evaluation mode to "=="

Constraint greater()
          sets the evaluation mode to ">"

Constraint greaterOrEqual()
          sets the evaluation mode to ">="

Constraint identity()
          sets the evaluation mode to identity comparison

Constraint is()
          turns off not() comparison

Constraint like()
          sets the evaluation mode to "like" comparison

Constraint not()
          turns on not() comparison

Constraint or(Constraint orWith)
          links two Constraints for OR evaluation

Constraint smaller()
          sets the evaluation mode to "<"

Constraint smallerOrEqual()
          sets the evaluation mode to "<="

Method Detail

and

public Constraint and(Constraint andWith)

links two Constraints for AND evaluation

or

public Constraint or(Constraint orWith)

links two Constraints for OR evaluation

equal

public Constraint equal()

sets the evaluation mode to "=="

greater

public Constraint greater()

sets the evaluation mode to ">"

greaterOrEqual

public Constraint greaterOrEqual()

sets the evaluation mode to ">="

smaller

public Constraint smaller()

sets the evaluation mode to "<"

smallerOrEqual

public Constraint smallerOrEqual()

sets the evaluation mode to "<="

identity

public Constraint identity()

sets the evaluation mode to identity comparison

like

public Constraint like()

sets the evaluation mode to "like" comparison

contains

public Constraint contains()

sets the evaluation mode to containment comparison

is

public Constraint is()

turns off not() comparison

not

public Constraint not()

turns on not() comparison