Package org.apache.sis.metadata.iso.maintenance

package org.apache.sis.metadata.iso.maintenance
Information about the frequency and scope of data updates. An explanation for this package is provided in the
invalid reference 
OpenGIS® javadoc
. The remaining discussion on this page is specific to the SIS implementation.

Overview

For a global overview of metadata in SIS, see the org.apache.sis.metadata package javadoc.
Package overview
Class hierarchy Aggregation hierarchy
ISO 19115 metadata
 ├─ Maintenance information
 ├─ Scope
 └─ Scope description
Code list
 ├─ Maintenance frequency
 └─ Scope code
 Maintenance information
 ├─ Maintenance frequency «code list»
 └─ Scope
     ├─ Scope code «code list»
     └─ Scope description

Null values, nil objects and collections

All constructors and setter methods accept null arguments. A null argument value means that the metadata element cannot be provided, and the reason for that is unspecified. Alternatively, users can specify why a metadata element is missing by providing a value created by NilReason.createNilObject(Class).

Unless otherwise noted in the Javadoc, all getter methods may return an empty collection, an empty array or null if the type is neither a collection or an array. Note that non-null values may be NilObjects.

Unless the metadata object has been marked as unmodifiable and unless otherwise noted in the Javadoc, all collections returned by getter methods are live: adding new elements in the collection modify directly the underlying metadata object. Noticeable exceptions to this rule are union structures, for which only one property can be non-empty in the same object.

Since:
0.3
Version:
1.0
Author:
Martin Desruisseaux (IRD, Geomatys), Touraïvane (IRD), Cédric Briançon (Geomatys), Cullen Rombach (Image Matters)