/**
* Sets the value for an "extra" property for this schema element. If a property already exists
* with the specified name, then it will be overwritten. If the value is {@code null}, then any
* existing property with the given name will be removed.
*
* @param elem The element where to set the extra property
* @param name The name for the "extra" property. It must not be {@code null}.
* @param value The value for the "extra" property. If it is {@code null}, then any existing
* definition will be removed.
*/
public static void setExtraProperty(SchemaFileElement elem, String name, String value) {
ifNull(name);
if (value == null) {
elem.getExtraProperties().remove(name);
} else {
elem.getExtraProperties().put(name, newLinkedList(value));
}
}
/**
* Retrieves the name of a single value property for this schema element.
*
* @param elem The element where to get the single value property from
* @param propertyName The name of the property to get
* @return The single value for this property, or <code>null</code> if it is this property is not
* set.
*/
public static String getSingleValueProperty(SchemaFileElement elem, String propertyName) {
List<String> values = elem.getExtraProperties().get(propertyName);
if (values != null && !values.isEmpty()) {
return values.get(0);
}
return null;
}
