algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IAlgebricksConstantValue.java

package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;

public interface IAlgebricksConstantValue {
    public boolean isNull();

    public boolean isTrue();

    public boolean isFalse();
}