com.datastax.driver.core.querybuilder

Class Delete

java.lang.Object

com.datastax.driver.core.Statement

com.datastax.driver.core.RegularStatement

com.datastax.driver.core.querybuilder.BuiltStatement

com.datastax.driver.core.querybuilder.Delete

public class Delete
extends BuiltStatement

A built DELETE statement.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Delete.Builder An in-construction DELETE statement.
static class	Delete.Conditions Conditions for a 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.

Field Summary

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

idempotent, NULL_PAYLOAD_VALUE

Method Summary

Modifier and Type	Method and Description
Delete	ifExists() Sets the 'IF EXISTS' option for this DELETE statement.
Delete.Conditions	onlyIf() Adds a conditions clause (IF) to this statement.
Delete.Conditions	onlyIf(Clause condition) Adds a conditions clause (IF) to this statement.
Delete.Options	using() Returns the options for this DELETE statement.
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.querybuilder.BuiltStatement

escapeId, getKeyspace, getNamedValues, getObject, getObject, getQueryString, getRoutingKey, getValues, hasValues, isIdempotent, setForceNoValues, setKeyspace, toString, usesNamedValues

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

getQueryString, getRoutingToken, hasValues, requestSizeInBytes, setRoutingToken

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

disableTracing, enableTracing, executingAs, getConsistencyLevel, getDefaultTimestamp, getFetchSize, getHost, getOutgoingPayload, getReadTimeoutMillis, getRetryPolicy, getSerialConsistencyLevel, isBatchIdempotent, isTracing, setConsistencyLevel, setDefaultTimestamp, setFetchSize, setHost, setIdempotent, setOutgoingPayload, setPagingState, setPagingState, setPagingStateUnsafe, setReadTimeoutMillis, setRetryPolicy, setSerialConsistencyLevel

Methods inherited from class java.lang.Object

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

Method Detail

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.

onlyIf

public Delete.Conditions onlyIf(Clause condition)

Adds a conditions clause (IF) to this statement.

This is a shorter/more readable version for onlyIf().and(condition).

This will configure the statement as non-idempotent, see Statement.isIdempotent() for more information.

Parameters:

condition - the condition to add.

Returns:

the conditions of this query to which more conditions can be added.

onlyIf

public Delete.Conditions onlyIf()

Adds a conditions clause (IF) to this statement.

This will configure the statement as non-idempotent, see Statement.isIdempotent() for more information.

Returns:

the conditions of this query to which more conditions 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.

using

public Delete.Options using()

Returns the options for this DELETE statement.

Chain this with Delete.Options.and(Using) to add options.

Returns:

the options of this DELETE statement.

ifExists

public Delete ifExists()

Sets the 'IF EXISTS' option for this DELETE statement.

A delete with that option will report whether the statement actually resulted in data being deleted. The existence check and deletion are done transactionally in the sense that if multiple clients attempt to delete a given row with this option, then at most one may succeed.

Please keep in mind that using this option has a non negligible performance impact and should be avoided when possible. This will configure the statement as non-idempotent, see Statement.isIdempotent() for more information.

Returns:

this DELETE statement.