Package org.apache.sis.metadata.iso.acquisition

package org.apache.sis.metadata.iso.acquisition
Information about the measuring instruments, the platform carrying them, and the mission to which the data contributes. An explanation for this package is provided in the OpenGIS® javadoc. The remaining discussion on this page is specific to the SIS implementation.


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
 ├─ Acquisition information
 ├─ Objective
 ├─ PlatformPass
 ├─ Event
 ├─ Requirement
 ├─ Requested date
 ├─ Plan
 ├─ Operation
 ├─ Platform
 ├─ Instrument
 └─ Environmental record
Code list
 ├─ Objective type
 ├─ Trigger
 ├─ Context
 ├─ Sequence
 ├─ Priority
 ├─ Geometry type
 └─ Operation type
Acquisition information
 ├─ Requirement
 │   ├─ Requested date
 │   └─ Priority «code list»
 ├─ Objective
 │   ├─ Objective type «code list»
 │   └─ Platform pass
 │       └─ Event
 │           ├─ Trigger «code list»
 │           ├─ Context «code list»
 │           └─ Sequence «code list»
 ├─ Plan
 │   ├─ Geometry type «code list»
 │   └─ Operation
 │       ├─ Operation type «code list»
 │       └─ Platform
 │           └─ Instrument
 └─ Environmental record

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.