VersionHistory (DSpace Kernel :: API and Implementation 7.1.1 API)

java.lang.Object
- org.dspace.versioning.VersionHistory

All Implemented Interfaces:

ReloadableEntity<Integer>
```
@Entity
public class VersionHistory
extends Object
implements ReloadableEntity<Integer>
```
Author:

Fabio Bolognesi (fabio at atmire dot com), Mark Diggory (markd at atmire dot com), Ben Bosman (ben at atmire dot com), Pascal-Nicolas Becker (dspace at pascal dash becker dot de)

Constructor Summary

Constructors
Modifier Constructor Description

protected VersionHistory()
Protected constructor, create object using: DSpaceCRUDService.create(Context)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`
`Integer`	`getID()`	The unique identifier of this entity instance.
`protected List<Version>`	`getVersions()`	Please use `VersioningService.getVersionsByHistory(Context, VersionHistory)` instead.
`boolean`	`hasDraftVersion()`	Verify if there is a version's item in submission.
`int`	`hashCode()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - VersionHistory
```
protected VersionHistory()
```
    Protected constructor, create object using: DSpaceCRUDService.create(Context)
- Method Detail
  - getID
```
public Integer getID()
```
    Description copied from interface: ReloadableEntity
    
    The unique identifier of this entity instance.
    
    Specified by:
    
    getID in interface ReloadableEntity<Integer>
    
    Returns:
    
    the value of the primary key for this instance.
  - getVersions
```
protected List<Version> getVersions()
```
    Please use VersioningService.getVersionsByHistory(Context, VersionHistory) instead. To keep version number stables we keep information about deleted Versions. org.dspace.versioning.service.VersioningService#getVersionsByHistory(Context, VersionHistory) VersioningService#getVersionsByHistory filters such versions and returns only active versions.
    
    Returns:
    
    list of versions
  - hasDraftVersion
```
public boolean hasDraftVersion()
```
    Verify if there is a version's item in submission.
    
    Returns:
    
    true if the last version in submission, otherwise false.
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object