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org.eclipse.jdt.launching
Class VMStandin

java.lang.Object
  

org.eclipse.jdt.launching.AbstractVMInstall
      
org.eclipse.jdt.launching.VMStandin

All Implemented Interfaces:

IVMInstall, IVMInstall2, IVMInstall3

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public class VMStandin
extends 
AbstractVMInstall

An implementation of IVMInstall that is used for manipulating VMs without necessarily committing changes.

Instances of this class act like wrappers. All other instances of IVMInstall represent 'real live' VMs that may be used for building or launching. Instances of this class behave like 'temporary' VMs that are not visible and not available for building or launching.

Instances of this class may be constructed as a preliminary step to creating a 'live' VM or as a preliminary step to making changes to a 'real' VM.

When convertToRealVM is called, a corresponding 'real' VM is created if one did not previously exist, or the corresponding 'real' VM is updated.

Clients may instantiate this class.

Since:

2.1

Restriction:

This class is not intended to be subclassed by clients.

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Constructor Summary
VMStandin ( IVMInstall realVM)           Construct a VMStandin instance based on the specified IVMInstall.
VMStandin ( IVMInstall sourceVM, String id)           Constructs a copy of the specified VM with the given identifier.
VMStandin ( IVMInstallType type, String id)

 

Method Summary
IVMInstall	convertToRealVM ()           If no corresponding 'real' VM exists, create one and populate it from this standin instance.
String	getJavaVersion ()           Returns a string representing the java.version system property of this VM install, or null if unknown.

 

Methods inherited from class org.eclipse.jdt.launching. AbstractVMInstall
abort, equals, evaluateSystemProperties, getAttribute, getAttributes, getId, getInstallLocation, getJavadocLocation, getLibraryLocations, getName, getVMArgs, getVMArguments, getVMInstallType, getVMRunner, hashCode, setAttribute, setInstallLocation, setJavadocLocation, setLibraryLocations, setName, setNotify, setVMArgs, setVMArguments

 

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

 

Constructor Detail

VMStandin

public VMStandin(
IVMInstallType type,
                 
String id)

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VMStandin

public VMStandin(
IVMInstall sourceVM,
                 
String id)

Constructs a copy of the specified VM with the given identifier.

Parameters:

sourceVM -

id -

Since:

3.2

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VMStandin

public VMStandin(
IVMInstall realVM)

Construct a VMStandin instance based on the specified IVMInstall. Changes to this standin will not be reflected in the 'real' VM until convertToRealVM is called.

Parameters:

realVM - the 'real' VM from which to construct this standin VM

Method Detail

convertToRealVM

public 
IVMInstall convertToRealVM()

If no corresponding 'real' VM exists, create one and populate it from this standin instance. If a corresponding VM exists, update its attributes from this standin instance.

Returns:

IVMInstall the 'real' corresponding to this standin VM

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getJavaVersion

public 
String getJavaVersion()

Description copied from interface: IVMInstall2

Returns a string representing the java.version system property of this VM install, or null if unknown.

Specified by:

getJavaVersion in interface IVMInstall2

Overrides:

getJavaVersion in class AbstractVMInstall

Returns:

a string representing the java.version system property of this VM install, or null if unknown.

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