com.datastax.driver.core.querybuilder
Class Delete

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

public class Delete
extends Statement

A built DELETE statement.

Nested Class Summary

static class	Delete.Builder An in-construction DELETE statement.
static class	Delete.Options The options of a DELETE statement.
static class	Delete.Selection An column selection clause for an in-construction DELETE statement.
static class	Delete.Where The WHERE clause of a DELETE 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()
Delete.Options	using(Using using) Adds a new options for this DELETE statement.
Delete.Where	where() Returns a Where statement for this query without adding clause.
Delete.Where	where(Clause clause) Adds a WHERE clause to this 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()

where

public Delete.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 Delete.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 Delete.Options using(Using using)

Adds a new options for this DELETE statement.

Parameters:

using - the option to add.

Returns:

the options of this DELETE 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.