Module com.aoindustries.aoserv.cluster

Package com.aoindustries.aoserv.cluster

Class PhysicalVolumeConfiguration

java.lang.Object

com.aoindustries.aoserv.cluster.PhysicalVolumeConfiguration

All Implemented Interfaces:

Serializable, Comparable<PhysicalVolumeConfiguration>

Direct Known Subclasses:

PhysicalVolumeConfigurationInt, PhysicalVolumeConfigurationLong, PhysicalVolumeConfigurationShort

public abstract class PhysicalVolumeConfiguration
extends Object
implements Comparable<PhysicalVolumeConfiguration>, Serializable

One Xen domU disk to physical volume configuration. This equates to a LVM logical volume to physical volume mapping segment. See lvdisplay -m for segments.

Author:

AO Industries, Inc.

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
final int	compareTo(PhysicalVolumeConfiguration other)	Sorted ascending.
final boolean	equals(PhysicalVolumeConfiguration other)	Performs a deep field-by-field comparison to see if two configurations are identical in every way.
final boolean	equals(Object obj)	Performs a deep field-by-field comparison to see if two configurations are identical in every way.
abstract long	getExtents()	Gets the number of extents.
abstract long	getFirstLogicalExtent()	Gets the first logical extent.
abstract long	getFirstPhysicalExtent()	Gets the first physical extent.
final PhysicalVolume	getPhysicalVolume()
final int	hashCode()
static PhysicalVolumeConfiguration	newInstance(PhysicalVolume physicalVolume, long firstLogicalExtent, long firstPhysicalExtent, long extents)	Creates a new PhysicalVolume of the appropriate type for the provided extents.
final boolean	overlaps(PhysicalVolumeConfiguration other)	Returns true if either the logical or the physical extents overlap.
final String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

newInstance

public static PhysicalVolumeConfiguration newInstance(PhysicalVolume physicalVolume,
 long firstLogicalExtent,
 long firstPhysicalExtent,
 long extents)

Creates a new PhysicalVolume of the appropriate type for the provided extents. Will use 16-bit and 32-bit representation when possible to save heap.

If heap space is every an issue, can use even more specialized versions like: PhysicalVolumeConfiguration896 for multiples of 896 that can store into byte PhysicalVolumeConfiguration_0_0_896 for newInstance(0,0,896) - would need to measure to know which would save heap

toString

public final String toString()

Overrides:

toString in class Object

getPhysicalVolume

public final PhysicalVolume getPhysicalVolume()

equals

public final boolean equals(Object obj)

Performs a deep field-by-field comparison to see if two configurations are identical in every way.

Overrides:

equals in class Object

See Also:

• equals(com.aoindustries.aoserv.cluster.PhysicalVolumeConfiguration)

equals

public final boolean equals(PhysicalVolumeConfiguration other)

Performs a deep field-by-field comparison to see if two configurations are identical in every way.

See Also:

• equals(Object)

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

getFirstLogicalExtent

public abstract long getFirstLogicalExtent()

Gets the first logical extent.

getFirstPhysicalExtent

public abstract long getFirstPhysicalExtent()

Gets the first physical extent.

getExtents

public abstract long getExtents()

Gets the number of extents.

compareTo

public final int compareTo(PhysicalVolumeConfiguration other)

Sorted ascending. By:

1. physicalVolume
2. firstLogicalExtent
3. firstPhysicalExtent
4. extents

Specified by:

compareTo in interface Comparable<PhysicalVolumeConfiguration>

overlaps

public final boolean overlaps(PhysicalVolumeConfiguration other)

Returns true if either the logical or the physical extents overlap.