Package org.opencds.cqf.cql.engine.elm.execution

Class IsNullEvaluator

java.lang.Object

org.opencds.cqf.cql.engine.elm.execution.Executable

org.cqframework.cql.elm.execution.Element

org.cqframework.cql.elm.execution.Expression

org.cqframework.cql.elm.execution.OperatorExpression

org.cqframework.cql.elm.execution.UnaryExpression

org.cqframework.cql.elm.execution.IsNull

org.opencds.cqf.cql.engine.elm.execution.IsNullEvaluator

All Implemented Interfaces:

org.jvnet.jaxb2_commons.lang.Equals2, org.jvnet.jaxb2_commons.lang.HashCode2, org.jvnet.jaxb2_commons.lang.ToString2

public class IsNullEvaluator
extends IsNull

Field Summary

Fields inherited from class org.cqframework.cql.elm.execution.UnaryExpression

operand

Fields inherited from class org.cqframework.cql.elm.execution.OperatorExpression

signature

Fields inherited from class org.cqframework.cql.elm.execution.Element

annotation, localId, locator, resultTypeName, resultTypeSpecifier

Constructor Summary

Constructors

Constructor	Description
IsNullEvaluator()

Method Summary

Modifier and Type	Method	Description
protected java.lang.Object	internalEvaluate(Context context)
static java.lang.Object	isNull(java.lang.Object operand)

Methods inherited from class org.cqframework.cql.elm.execution.IsNull

append, appendFields, equals, equals, hashCode, hashCode, toString, withAnnotation, withAnnotation, withLocalId, withLocator, withOperand, withResultTypeName, withResultTypeSpecifier, withSignature, withSignature

Methods inherited from class org.cqframework.cql.elm.execution.UnaryExpression

getOperand, setOperand

Methods inherited from class org.cqframework.cql.elm.execution.OperatorExpression

getSignature

Methods inherited from class org.cqframework.cql.elm.execution.Element

getAnnotation, getLocalId, getLocator, getResultTypeName, getResultTypeSpecifier, setLocalId, setLocator, setResultTypeName, setResultTypeSpecifier

Methods inherited from class org.opencds.cqf.cql.engine.elm.execution.Executable

evaluate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

IsNullEvaluator

public IsNullEvaluator()

Method Detail

isNull

public static java.lang.Object isNull(java.lang.Object operand)

internalEvaluate

protected java.lang.Object internalEvaluate(Context context)

Overrides:

internalEvaluate in class Executable