@Override
public Property getProperty(String name) {
if (ID_PROPERTY_NAME.equals(name)) {
return getIdProperty();
} else if (Edge.LABEL_PROPERTY_NAME.equals(name) && this instanceof Edge) {
return getEdgeLabelProperty();
}
Iterator<Property> propertiesWithName = getProperties(name).iterator();
if (propertiesWithName.hasNext()) {
return propertiesWithName.next();
}
return null;
}
@Override
public Object getPropertyValue(String key, String name, int index) {
if (ID_PROPERTY_NAME.equals(name)) {
return getIdProperty();
} else if (Edge.LABEL_PROPERTY_NAME.equals(name) && this instanceof Edge) {
return getEdgeLabelProperty();
}
Iterator<Object> values = getPropertyValues(key, name).iterator();
while (values.hasNext() && index >= 0) {
Object v = values.next();
if (index == 0) {
return v;
}
index--;
}
return null;
}
@Override
public Iterable<Property> getProperties(final String name) {
if (ID_PROPERTY_NAME.equals(name)) {
ArrayList<Property> result = new ArrayList<>();
result.add(getIdProperty());
return result;
} else if (Edge.LABEL_PROPERTY_NAME.equals(name) && this instanceof Edge) {
ArrayList<Property> result = new ArrayList<>();
result.add(getEdgeLabelProperty());
return result;
}
return new FilterIterable<Property>(getProperties()) {
@Override
protected boolean isIncluded(Property property) {
return property.getName().equals(name);
}
};
}
@Override
public Property getProperty(String key, String name, Visibility visibility) {
if (ID_PROPERTY_NAME.equals(name)) {
return getIdProperty();
} else if (Edge.LABEL_PROPERTY_NAME.equals(name) && this instanceof Edge) {
return getEdgeLabelProperty();
}
for (Property p : getProperties()) {
if (!p.getKey().equals(key)) {
continue;
}
if (!p.getName().equals(name)) {
continue;
}
if (visibility == null) {
return p;
}
if (!visibility.equals(p.getVisibility())) {
continue;
}
return p;
}
return null;
}