Package org.yamcs.xtce

Class Comparison

java.lang.Object

org.yamcs.xtce.Comparison

All Implemented Interfaces:

Serializable, MatchCriteria

public class Comparison
extends Object
implements MatchCriteria

A simple ParameterInstanceRef to value comparison. DIFFERS_FROM_XTCE: 1) in xtce the value is stored as a string and it's not very clear how it's compared with an integer 2) in xtce Comparison extends ParameterInstanceRef, and MatchCriteria is a choice of Comparison, ComparisonList, ...

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.yamcs.xtce.MatchCriteria

ALWAYS_MATCH

Constructor Summary

Constructors

Constructor	Description
Comparison(ParameterInstanceRef paraRef, double doubleValue, OperatorType op)
Comparison(ParameterInstanceRef paraRef, int intValue, OperatorType op)
Comparison(ParameterInstanceRef paraRef, long longValue, OperatorType op)
Comparison(ParameterInstanceRef paraRef, String stringValue, OperatorType op)	Makes a new comparison with a generic stringValue at this step the paraRef could be pointing to an unknown parameter. resolveValueType can(should) be called later to create the correct value if it's not string

Method Summary

Modifier and Type	Method	Description
OperatorType	getComparisonOperator()
Set<Parameter>	getDependentParameters()	Return the set of parameters which are required in order to evaluate the match criteria.
Parameter	getParameter()
ParameterInstanceRef	getParameterRef()
String	getStringValue()
Object	getValue()
boolean	isMet(CriteriaEvaluator evaluator)	Return true if the condition matches
void	resolveValueType()	Called when the type of the parameter used for comparison is known, so we have to find the value from stringValue that we can compare to it
String	toExpressionString()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Comparison

public Comparison(ParameterInstanceRef paraRef,
                  String stringValue,
                  OperatorType op)

Makes a new comparison with a generic stringValue at this step the paraRef could be pointing to an unknown parameter. resolveValueType can(should) be called later to create the correct value if it's not string

Parameters:

paraRef -

stringValue -

op -

Comparison

public Comparison(ParameterInstanceRef paraRef,
                  int intValue,
                  OperatorType op)

Comparison

public Comparison(ParameterInstanceRef paraRef,
                  long longValue,
                  OperatorType op)

Comparison

public Comparison(ParameterInstanceRef paraRef,
                  double doubleValue,
                  OperatorType op)

Method Detail

isMet

public boolean isMet(CriteriaEvaluator evaluator)

Description copied from interface: MatchCriteria

Return true if the condition matches

Specified by:

isMet in interface MatchCriteria

Returns:

toExpressionString

public String toExpressionString()

Specified by:

toExpressionString in interface MatchCriteria

resolveValueType

public void resolveValueType()

Called when the type of the parameter used for comparison is known, so we have to find the value from stringValue that we can compare to it

getParameterRef

public ParameterInstanceRef getParameterRef()

getComparisonOperator

public OperatorType getComparisonOperator()

getDependentParameters

public Set<Parameter> getDependentParameters()

Description copied from interface: MatchCriteria

Return the set of parameters which are required in order to evaluate the match criteria. If no parameter is required, return an empty set.

Specified by:

getDependentParameters in interface MatchCriteria

Returns:

getParameter

public Parameter getParameter()

getValue

public Object getValue()

getStringValue

public String getStringValue()

toString

public String toString()

Overrides:

toString in class Object