public ExampleIterator(OperatorDescription description) {
super(description, "Example Process");
outExtender.start();
getTransformer().addPassThroughRule(exampleSetInput, exampleSetInnerSource);
getTransformer().addRule(new SubprocessTransformRule(getSubprocess(0)));
getTransformer()
.addRule(
new PassThroughRule(exampleSetInput, exampleSetOutput, false) {
@Override
public MetaData modifyMetaData(MetaData unmodifiedMetaData) {
if (exampleSetInnerSink.isConnected()) {
return exampleSetInnerSink.getMetaData();
} else {
// due to side effects, we cannot make any guarantee about the output.
return new ExampleSetMetaData();
}
}
});
getTransformer().addRule(outExtender.makePassThroughRule());
addValue(
new ValueDouble("iteration", "The number of the current iteration / loop / example.") {
@Override
public double getDoubleValue() {
return iteration;
}
});
}
public MultipleLabelIterator(OperatorDescription description) {
super(description, "Iteration");
outExtender.start();
getTransformer()
.addRule(
new ExampleSetPassThroughRule(exampleSetInput, exampleInnerSource, SetRelation.EQUAL) {
@Override
public ExampleSetMetaData modifyExampleSet(ExampleSetMetaData metaData)
throws UndefinedParameterError {
AttributeMetaData myLabel = metaData.getLabelMetaData();
if (myLabel != null) metaData.removeAttribute(myLabel);
for (AttributeMetaData amd : metaData.getAllAttributes()) {
if (amd.getName().startsWith(Attributes.LABEL_NAME)) {
amd.setRole(Attributes.LABEL_NAME);
break;
}
}
return metaData;
}
});
getTransformer().addRule(new SubprocessTransformRule(getSubprocess(0)));
getTransformer().addRule(outExtender.makePassThroughRule());
}
