java.lang.Object
- io.pravega.shared.protocol.netty.WireCommands

```
public final class WireCommands
extends java.lang.Object
```
The complete list of all commands that go over the wire between clients and the server. Each command is self-contained providing both it's serialization and deserialization logic. Commands are not nested and contain only primitive types. The types are serialized in the obvious way using Java's DataOutput and DataInput. All data is written BigEndian. Because length and type are detected externally these are not necessary for the classes to supply. Compatible changes (i.e. Adding new members) that would not cause breakage if either the client or the server were running older code can be made at any time. Incompatible changes should instead create a new WireCommand object.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`WireCommands.AppendBlock`
`static class`	`WireCommands.AppendBlockEnd`
`static class`	`WireCommands.AppendSetup`
`static class`	`WireCommands.AuthTokenCheckFailed`
`static class`	`WireCommands.ConditionalAppend`
`static class`	`WireCommands.ConditionalBlockEnd`
`static class`	`WireCommands.ConditionalCheckFailed`
`static class`	`WireCommands.CreateSegment`
`static class`	`WireCommands.CreateTableSegment`
`static class`	`WireCommands.DataAppended`
`static class`	`WireCommands.DeleteSegment`
`static class`	`WireCommands.DeleteTableSegment`
`static class`	`WireCommands.ErrorMessage`	A generic error response that encapsulates an error code (to be used for client-side processing) and an error message describing the origin of the error.
`static class`	`WireCommands.Event`
`static class`	`WireCommands.GetSegmentAttribute`
`static class`	`WireCommands.GetStreamSegmentInfo`
`static class`	`WireCommands.Hello`
`static class`	`WireCommands.InvalidEventNumber`
`static class`	`WireCommands.KeepAlive`
`static class`	`WireCommands.MergeSegments`
`static class`	`WireCommands.MergeTableSegments`
`static class`	`WireCommands.NoSuchSegment`
`static class`	`WireCommands.OperationUnsupported`
`static class`	`WireCommands.Padding`
`static class`	`WireCommands.PartialEvent`
`static class`	`WireCommands.ReadSegment`
`static class`	`WireCommands.ReadTable`
`static class`	`WireCommands.ReadTableEntries`
`static class`	`WireCommands.ReadTableEntriesDelta`
`static class`	`WireCommands.ReadTableKeys`
`static class`	`WireCommands.ReleasableCommand`	Base class for any command that may require releasing resources.
`static class`	`WireCommands.RemoveTableKeys`
`static class`	`WireCommands.SealSegment`
`static class`	`WireCommands.SealTableSegment`
`static class`	`WireCommands.SegmentAlreadyExists`
`static class`	`WireCommands.SegmentAttribute`
`static class`	`WireCommands.SegmentAttributeUpdated`
`static class`	`WireCommands.SegmentCreated`
`static class`	`WireCommands.SegmentDeleted`
`static class`	`WireCommands.SegmentIsSealed`
`static class`	`WireCommands.SegmentIsTruncated`
`static class`	`WireCommands.SegmentPolicyUpdated`
`static class`	`WireCommands.SegmentRead`
`static class`	`WireCommands.SegmentSealed`
`static class`	`WireCommands.SegmentsMerged`
`static class`	`WireCommands.SegmentTruncated`
`static class`	`WireCommands.SetupAppend`
`static class`	`WireCommands.StreamSegmentInfo`
`static class`	`WireCommands.TableEntries`
`static class`	`WireCommands.TableEntriesDeltaRead`
`static class`	`WireCommands.TableEntriesRead`
`static class`	`WireCommands.TableEntriesUpdated`
`static class`	`WireCommands.TableKey`
`static class`	`WireCommands.TableKeyBadVersion`
`static class`	`WireCommands.TableKeyDoesNotExist`
`static class`	`WireCommands.TableKeysRead`
`static class`	`WireCommands.TableKeysRemoved`
`static class`	`WireCommands.TableRead`
`static class`	`WireCommands.TableSegmentNotEmpty`
`static class`	`WireCommands.TableValue`
`static class`	`WireCommands.TruncateSegment`
`static class`	`WireCommands.UpdateSegmentAttribute`
`static class`	`WireCommands.UpdateSegmentPolicy`
`static class`	`WireCommands.UpdateTableEntries`
`static class`	`WireCommands.WrongHost`

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`MAX_WIRECOMMAND_SIZE`
`static long`	`NULL_ATTRIBUTE_VALUE`
`static long`	`NULL_TABLE_SEGMENT_OFFSET`
`static int`	`OLDEST_COMPATIBLE_VERSION`
`static int`	`TYPE_PLUS_LENGTH_SIZE`
`static int`	`TYPE_SIZE`
`static int`	`WIRE_VERSION`

Constructor Summary

Constructors
Constructor Description

WireCommands()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type Method Description

static WireCommandType getType(int value)
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - WIRE_VERSION
```
public static final int WIRE_VERSION
```
    See Also:
    
    Constant Field Values
  - OLDEST_COMPATIBLE_VERSION
```
public static final int OLDEST_COMPATIBLE_VERSION
```
    See Also:
    
    Constant Field Values
  - TYPE_SIZE
```
public static final int TYPE_SIZE
```
    See Also:
    
    Constant Field Values
  - TYPE_PLUS_LENGTH_SIZE
```
public static final int TYPE_PLUS_LENGTH_SIZE
```
    See Also:
    
    Constant Field Values
  - MAX_WIRECOMMAND_SIZE
```
public static final int MAX_WIRECOMMAND_SIZE
```
    See Also:
    
    Constant Field Values
  - NULL_ATTRIBUTE_VALUE
```
public static final long NULL_ATTRIBUTE_VALUE
```
    See Also:
    
    Constant Field Values
  - NULL_TABLE_SEGMENT_OFFSET
```
public static final long NULL_TABLE_SEGMENT_OFFSET
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - WireCommands
```
public WireCommands()
```
- Method Detail
  - getType
```
public static WireCommandType getType(int value)
```

Class WireCommands

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

WIRE_VERSION

OLDEST_COMPATIBLE_VERSION

TYPE_SIZE

TYPE_PLUS_LENGTH_SIZE

MAX_WIRECOMMAND_SIZE

NULL_ATTRIBUTE_VALUE

NULL_TABLE_SEGMENT_OFFSET

Constructor Detail

WireCommands

Method Detail

getType