Package com.tangosol.coherence.rest.util.aggregator

Class AggregatorRegistry

java.lang.Object

com.tangosol.coherence.rest.util.aggregator.AggregatorRegistry

public class AggregatorRegistry
extends Object

A registry for AggregatorFactory instances.

Author:

vp 2011.07.07

Field Summary

Fields

Modifier and Type	Field	Description
static final String	AGGREGATOR_REQUEST_REGEX	Regex pattern that defines the aggregator request syntax.

Constructor Summary

Constructors

Constructor	Description
AggregatorRegistry()	Construct an AggregatorRegistry.
AggregatorRegistry(Collection<AggregatorConfig> colConfig)	Construct an AggregatorRegistry that includes built-in aggregators in addition to the specified aggregators.

Method Summary

Modifier and Type	Method	Description
InvocableMap.EntryAggregator	getAggregator(String sRequest)	Returns a configured aggregator.
void	register(String sName, AggregatorFactory factory)	Register an aggregator factory with the given name.
void	register(String sName, Class clz)	Register an aggregator or aggregator factory with the given name.
void	register(Collection<AggregatorConfig> colConfig)	Register a collection of aggregators.

Methods inherited from class java.lang.Object

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

Field Details

AGGREGATOR_REQUEST_REGEX

public static final String AGGREGATOR_REQUEST_REGEX

Regex pattern that defines the aggregator request syntax.

See Also:

• Constant Field Values

Constructor Details

AggregatorRegistry

public AggregatorRegistry()

Construct an AggregatorRegistry.

By default the following built-in aggregators will be registered:

• big-decimal-average
• big-decimal-max
• big-decimal-min
• big-decimal-sum
• comparable-max
• comparable-min
• count
• distinct-values
• double-average
• double-max
• double-min
• double-sum
• long-max
• long-min
• long-sum

AggregatorRegistry

public AggregatorRegistry(Collection<AggregatorConfig> colConfig)

Construct an AggregatorRegistry that includes built-in aggregators in addition to the specified aggregators.

Parameters:

colConfig - aggregator configurations

Method Details

getAggregator

public InvocableMap.EntryAggregator getAggregator(String sRequest)

Returns a configured aggregator.

Parameters:

sRequest - the aggregator request

Returns:

aggregator

register

public void register(String sName,
 AggregatorFactory factory)

Register an aggregator factory with the given name.

Parameters:

sName - the aggregator name

factory - the aggregator factory

register

public void register(String sName,
 Class clz)

Register an aggregator or aggregator factory with the given name.

A DefaultAggregatorFactory will be used if the clz parameter is a class that implements InvocableMap.EntryAggregator.

Parameters:

sName - the aggregator name

clz - the aggregator or aggregator factory class

register

public void register(Collection<AggregatorConfig> colConfig)

Register a collection of aggregators.

Parameters:

colConfig - the aggregator configurations