com.datastax.driver.core.querybuilder

Class Select.Where

java.lang.Object

com.datastax.driver.core.Query

com.datastax.driver.core.Statement

com.datastax.driver.core.querybuilder.Select.Where

Enclosing class:

Select

public static class Select.Where
extends Statement

The WHERE clause of a SELECT statement.

Field Summary

Fields

Modifier and Type	Field and Description
protected Boolean	isCounterOp
protected T	statement

Method Summary

Methods

Modifier and Type	Method and Description
Select.Where	and(Clause clause) Adds the provided clause to this WHERE clause.
protected StringBuilder	buildQueryString()
Query	disableTracing() Disables tracing for this query.
Query	enableTracing() Enables tracing for this query.
ConsistencyLevel	getConsistencyLevel() Returns the consistency level.
String	getQueryString() Returns the query string for this statement.
RetryPolicy	getRetryPolicy() Returns the retry policy sets for this query, if any.
ByteBuffer	getRoutingKey() Returns the routing key (in binary raw form) to use for token aware routing of this query.
protected boolean	isCounterOp()
boolean	isTracing() Returns whether tracing is enabled for this query or not.
Select	limit(int limit) Adds a LIMIT clause to the SELECT statement this Where clause if part of.
Select	orderBy(Ordering... orderings) Adds an ORDER BY clause to the SELECT statement this WHERE clause if part of.
Query	setConsistencyLevel(ConsistencyLevel consistency) Sets the consistency level for the query.
protected void	setCounterOp(boolean isCounterOp)
protected void	setDirty()
Query	setRetryPolicy(RetryPolicy policy) Sets the retry policy to use for this query.

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

toString

Methods inherited from class java.lang.Object

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

Field Detail

statement

protected T extends com.datastax.driver.core.querybuilder.BuiltStatement statement

isCounterOp

protected Boolean isCounterOp

Method Detail

and

public Select.Where and(Clause clause)

Adds the provided clause to this WHERE clause.

Parameters:

clause - the clause to add.

Returns:

this WHERE clause.

orderBy

public Select orderBy(Ordering... orderings)

Adds an ORDER BY clause to the SELECT statement this WHERE clause if part of.

Parameters:

orderings - the orderings to add.

Returns:

the select statement this Where clause if part of.

Throws:

IllegalStateException - if an ORDER BY clause has already been provided.

limit

public Select limit(int limit)

Adds a LIMIT clause to the SELECT statement this Where clause if part of.

Parameters:

limit - the limit to set.

Returns:

the select statement this Where clause if part of.

Throws:

IllegalArgumentException - if limit &gte; 0.

IllegalStateException - if a LIMIT clause has already been provided.

getQueryString

public String getQueryString()

Description copied from class: Statement

Returns the query string for this statement.

Returns:

a valid CQL query string.

buildQueryString

protected StringBuilder buildQueryString()

getRoutingKey

public ByteBuffer getRoutingKey()

Description copied from class: Query

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

The routing key is optional in 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.

Returns:

the routing key for this query or null.

setDirty

protected void setDirty()

isCounterOp

protected boolean isCounterOp()

setConsistencyLevel

public Query setConsistencyLevel(ConsistencyLevel consistency)

Description copied from class: Query

Sets the consistency level for the query.

The default consistency level, if this method is not called, is ConsistencyLevel.ONE.

Overrides:

setConsistencyLevel in class Query

Parameters:

consistency - the consistency level to set.

Returns:

this Query object.

getConsistencyLevel

public ConsistencyLevel getConsistencyLevel()

Description copied from class: Query

Returns the consistency level.

Overrides:

getConsistencyLevel in class Query

Returns:

the consistency level, which is ConsistencyLevel.ONE if no consistency level has been specified.

enableTracing

public Query enableTracing()

Description copied from class: Query

Enables tracing for this query. By default (that is unless you call this method), tracing is not enabled.

Overrides:

enableTracing in class Query

Returns:

this Query object.

disableTracing

public Query disableTracing()

Description copied from class: Query

Disables tracing for this query.

Overrides:

disableTracing in class Query

Returns:

this Query object.

isTracing

public boolean isTracing()

Description copied from class: Query

Returns whether tracing is enabled for this query or not.

Overrides:

isTracing in class Query

Returns:

true if this query has tracing enabled, false otherwise.

setRetryPolicy

public Query setRetryPolicy(RetryPolicy policy)

Description copied from class: Query

Sets the retry policy to use for this query.

The default retry policy, if this method is not called, is the one returned by Policies.getRetryPolicy() in the cluster configuration. This method is thus only useful in case you want to punctually override the default policy for this request.

Overrides:

setRetryPolicy in class Query

Parameters:

policy - the retry policy to use for this query.

Returns:

this Query object.

getRetryPolicy

public RetryPolicy getRetryPolicy()

Description copied from class: Query

Returns the retry policy sets for this query, if any.

Overrides:

getRetryPolicy in class Query

Returns:

the retry policy sets specifically for this query or null if no query specific retry policy has been set through Query.setRetryPolicy(com.datastax.driver.core.policies.RetryPolicy) (in which case the Cluster retry policy will apply if necessary).

setCounterOp

protected void setCounterOp(boolean isCounterOp)