/**
* Clones the current status for use in a new branch of the qualifier.
*
* @return a copy of this status object
*/
public BlessingStatus newStatus() {
try {
BinOpStatus status = (BinOpStatus) clone();
status.firstStatus = firstStatus.newStatus();
status.secondStatus = secondStatus.newStatus();
return status;
} catch (CloneNotSupportedException e) {
throw new RuntimeException("Wow, I did not expect that one!");
}
}
/**
* Evaluates the condition.<br>
* Called upon by support classes when a qualifier's key and value are known.<br>
* Needs to be implemented by concrete subclasses.
*
* @param key for which a qualifier provided a value
* @param value the value provided. Null if no value is available. NullValue if key is compared to
* a NullValue
* @param selector the relationship between key and value. A qualifier operator
* @param context the current context. May be modified by this method
* @return true if the condition is verified
*/
public boolean evaluate(String key, Object value, NSSelector selector, BlessingContext context) {
if (conditionKey.equals(key)) {
BlessingStatus status = context.status();
boolean negate = status.negate();
if (negate) {
return (asLessThan && asEquals && asNotEquals && asGreaterThan)
|| (asGreaterThan
&& ((selector == EOQualifier.QualifierOperatorLessThan)
|| (selector == EOQualifier.QualifierOperatorLessThanOrEqualTo)))
|| (asNotEquals && (selector == EOQualifier.QualifierOperatorEqual)
|| (selector == EOQualifier.QualifierOperatorCaseInsensitiveLike)
|| (selector == EOQualifier.QualifierOperatorLike))
|| (asEquals && (selector == EOQualifier.QualifierOperatorNotEqual))
|| (asLessThan
&& ((selector == EOQualifier.QualifierOperatorGreaterThan)
|| (selector == EOQualifier.QualifierOperatorGreaterThanOrEqualTo)));
} else {
return (asLessThan && asEquals && asNotEquals && asGreaterThan)
|| (asLessThan
&& ((selector == EOQualifier.QualifierOperatorLessThan)
|| (selector == EOQualifier.QualifierOperatorLessThanOrEqualTo)))
|| (asEquals && (selector == EOQualifier.QualifierOperatorEqual)
|| (selector == EOQualifier.QualifierOperatorCaseInsensitiveLike)
|| (selector == EOQualifier.QualifierOperatorLike))
|| (asNotEquals && (selector == EOQualifier.QualifierOperatorNotEqual))
|| (asGreaterThan
&& ((selector == EOQualifier.QualifierOperatorGreaterThan)
|| (selector == EOQualifier.QualifierOperatorGreaterThanOrEqualTo)));
}
}
context.setErrorCause(new BlessingErrorCause(this.errorMessage, key, value, selector));
return false;
}
/**
* Sets the flag determining if the current qualifier branch is negated, i.e contains an
* EONotQualifier at a higher level.
*
* @param the new negate flag
*/
public void setNegate(boolean negate) {
super.setNegate(negate);
firstStatus.setNegate(negate);
secondStatus.setNegate(negate);
}