ExpectedRevision (db-client-java 5.1.0 API)

java.lang.Object
- com.eventstore.dbclient.ExpectedRevision

Direct Known Subclasses:

ExpectedRevision.AnyExpectedRevision, ExpectedRevision.NoStreamExpectedRevision, ExpectedRevision.SpecificExpectedRevision, ExpectedRevision.StreamExistsExpectedRevision
```
public abstract class ExpectedRevision
extends java.lang.Object
```
Constants used for expected revision control.
The EventStoreDB server will assure idempotency for all requests using any value in ExpectedRevision except ANY. When using ANY, the EventStoreDB server will do its best to assure idempotency but will not guarantee it. Any other ExpectedRevision instances are meant for optimistic concurrency checks.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`ExpectedRevision.AnyExpectedRevision`
`static class`	`ExpectedRevision.NoStreamExpectedRevision`
`static class`	`ExpectedRevision.SpecificExpectedRevision`
`static class`	`ExpectedRevision.StreamExistsExpectedRevision`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static ExpectedRevision`	`any()`	This writes should not conflict with anything and should always succeed.
`boolean`	`equals(java.lang.Object o)`
`static ExpectedRevision`	`expectedRevision(long revision)`	States that the last event written to the stream should have an event revision matching your expected value.
`static ExpectedRevision`	`fromRawLong(long revision)`
`int`	`hashCode()`
`static ExpectedRevision`	`noStream()`	The stream being written to should not yet exist.
`static ExpectedRevision`	`streamExists()`	The stream should exist.
`long`	`toRawLong()`

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

- Method Detail
  - any
```
public static ExpectedRevision any()
```
    This writes should not conflict with anything and should always succeed.
  - noStream
```
public static ExpectedRevision noStream()
```
    The stream being written to should not yet exist. If it does exist, treats that as a concurrency problem.
  - streamExists
```
public static ExpectedRevision streamExists()
```
    The stream should exist. If it or a metadata stream does not exist, treats that as a concurrency problem.
  - expectedRevision
```
public static ExpectedRevision expectedRevision(long revision)
```
    States that the last event written to the stream should have an event revision matching your expected value.
  - fromRawLong
```
public static ExpectedRevision fromRawLong(long revision)
```
  - toRawLong
```
public long toRawLong()
```
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object