diff options
Diffstat (limited to 'rba.tool.core/src/rba/tool/core/sort/ComparisonOperatorEvaluator.java')
-rw-r--r-- | rba.tool.core/src/rba/tool/core/sort/ComparisonOperatorEvaluator.java | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/rba.tool.core/src/rba/tool/core/sort/ComparisonOperatorEvaluator.java b/rba.tool.core/src/rba/tool/core/sort/ComparisonOperatorEvaluator.java new file mode 100644 index 0000000..d0bc3dd --- /dev/null +++ b/rba.tool.core/src/rba/tool/core/sort/ComparisonOperatorEvaluator.java @@ -0,0 +1,49 @@ +package rba.tool.core.sort; + +import org.eclipse.emf.common.util.EList; +import org.eclipse.emf.ecore.EObject; + +import rba.core.ComparisonOperator; +import rba.core.Expression; +import rba.core.RuleObject; + +public abstract class ComparisonOperatorEvaluator<T extends RuleObject> extends ExpressionEvaluator<T> implements ComparisonOperator { + + protected ComparisonOperator operator; + + protected T subject; + + @SuppressWarnings("unchecked") + protected ComparisonOperatorEvaluator(ComparisonOperator o) { + super(o); + operator = o; + EObject container = o.eContainer(); + while (!(container instanceof RuleObject)) { + container = container.eContainer(); + if (container == null) + break; + } + if (container != null) { + subject = (T) container; + } + } + + abstract public boolean evaluate(ValueSortedList<T> list); + + /** + * @param list + * @return -1 if it has no suggestion 9999 implies MAX group (last index) + */ + abstract public int suggestIndex(ValueSortedList<T> list); + + @Override + public EList<Expression> getOperand() { + return operator.getOperand(); + } + + @Override + public String getSymbol() { + return operator.getSymbol(); + } + +} |