com.datastax.driver.core.querybuilder
Class Update

java.lang.Object
  com.datastax.driver.core.Query
      com.datastax.driver.core.Statement
          com.datastax.driver.core.querybuilder.Update

public class Update
extends Statement

A built UPDATE statement.

Nested Class Summary

static class	Update.Assignments The assignments of an UPDATE statement.
static class	Update.Options The options of a UDPATE statement.
static class	Update.Where The WHERE clause of an UPDATE statement.

Method Summary

protected String	buildQueryString()
String	getQueryString() The query string for this statement.
ByteBuffer	getRoutingKey() The routing key (in binary raw form) to use for token aware routing of this query.
protected void	setDirty()
Update.Options	using(Using using) Adds a new options for this UPDATE statement.
Update.Where	where() Returns a Where statement for this query without adding clause.
Update.Where	where(Clause clause) Adds a WHERE clause to this statement.
Update.Assignments	with() Returns the assignments of this UPDATE statement.
Update.Assignments	with(Assignment assignment) Adds an assignment to this UPDATE statement.

Methods inherited from class com.datastax.driver.core.Statement

toString

Methods inherited from class com.datastax.driver.core.Query

disableTracing, enableTracing, getConsistencyLevel, getRetryPolicy, isTracing, setConsistencyLevel, setRetryPolicy

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

buildQueryString

protected String buildQueryString()

with

public Update.Assignments with(Assignment assignment)

Adds an assignment to this UPDATE statement. This is a shorter/more readable version for with().and(assignment).

Parameters:

assignment - the assignment to add.

Returns:

the Assignments of this UPDATE statement.

with

public Update.Assignments with()

Returns the assignments of this UPDATE statement.

Returns:

the assignments of this UPDATE statement.

where

public Update.Where where(Clause clause)

Adds a WHERE clause to this statement. This is a shorter/more readable version for where().and(clause).

Parameters:

clause - the clause to add.

Returns:

the where clause of this query to which more clause can be added.

where

public Update.Where where()

Returns a Where statement for this query without adding clause.

Returns:

the where clause of this query to which more clause can be added.

using

public Update.Options using(Using using)

Adds a new options for this UPDATE statement.

Parameters:

using - the option to add.

Returns:

the options of this UPDATE statement.

getQueryString

public String getQueryString()

Description copied from class: Statement

The query string for this statement.

Specified by:

getQueryString in class Statement

Returns:

a valid CQL query string.

setDirty

protected void setDirty()

getRoutingKey

public ByteBuffer getRoutingKey()

Description copied from class: Query

The routing key (in binary raw form) to use for token aware routing of this query.

The routing key is optional in the sense that implementers are free to return null. The routing key is an hint used for token aware routing (see TokenAwarePolicy), and if provided should correspond to the binary value for the query partition key. However, not providing a routing key never causes a query to fail and if the load balancing policy used is not token aware, then the routing key can be safely ignored.

Specified by:

getRoutingKey in class Query

Returns:

the routing key for this query or null.