VersionController (Apache FOP 2.4 API)

java.lang.Object
- org.apache.fop.pdf.VersionController

```
public abstract class VersionController
extends java.lang.Object
```
An abstraction that controls the mutability of the PDF version for a document.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static VersionController`	`getDynamicVersionController(Version initialVersion, PDFDocument doc)`	Returns a controller that allows subsequent changes to the document's version.
`static VersionController`	`getFixedVersionController(Version version)`	Returns a controller that disallows subsequent change to the document's version.
`Version`	`getPDFVersion()`	Returns the PDF version of the document.
`abstract void`	`setPDFVersion(Version version)`	Sets the PDF version of the document.
`java.lang.String`	`toString()`

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

- Method Detail
  - getPDFVersion
```
public Version getPDFVersion()
```
    Returns the PDF version of the document.
    
    Returns:
    
    the PDF version
  - setPDFVersion
```
public abstract void setPDFVersion(Version version)
```
    Sets the PDF version of the document.
    
    Parameters:
    
    version - the PDF version
    
    Throws:
    
    java.lang.IllegalStateException - if the PDF version is not allowed to change.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - getFixedVersionController
```
public static VersionController getFixedVersionController(Version version)
```
    Returns a controller that disallows subsequent change to the document's version. The minimum allowed version is v1.4.
    
    Parameters:
    
    version - the PDF version (must be >= v1.4)
    
    Returns:
    
    the fixed PDF version controller
  - getDynamicVersionController
```
public static VersionController getDynamicVersionController(Version initialVersion,
                                                            PDFDocument doc)
```
    Returns a controller that allows subsequent changes to the document's version.
    
    Parameters:
    
    initialVersion - the initial PDF version
    
    doc - the document whose version is being set
    
    Returns:
    
    the dynamic PDF version controller