Package ru.ewc.decita

Class Locators

java.lang.Object

ru.ewc.decita.Locators

public final class Locators
extends Object

I am the collection of Locators used to populate the ComputationContexts. My main responsibility is to keep track of the Locators, merge them together and provide the merged result.

Since:

0.3.1

Field Summary

Fields

Modifier and Type	Field	Description
static final Locators	CONSTANT	The constant Locator that can be used in the ComputationContext.
static final Locators	EMPTY	The empty set of predefined Locators that should be used to get data from a system.

Constructor Summary

Constructors

Constructor	Description
Locators(Map<String,Locator> collection)	Ctor.

Method Summary

Modifier and Type	Method	Description
Locator	locatorFor(String locator)	Returns a concrete Locator if it's found in an instance storage.
Locators	mergedWith(Locators additional)
Set<String>	names()

Methods inherited from class java.lang.Object

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

Field Details

CONSTANT

public static final Locators CONSTANT

The constant Locator that can be used in the ComputationContext.

EMPTY

public static final Locators EMPTY

The empty set of predefined Locators that should be used to get data from a system.

Constructor Details

Locators

public Locators(Map<String,Locator> collection)

Ctor.

Parameters:

collection - The Locators to be managed by this instance.

Method Details

locatorFor

public Locator locatorFor(String locator)
                   throws DecitaException

Returns a concrete Locator if it's found in an instance storage.

Parameters:

locator - The String identifier of the required Locator.

Returns:

The instance of Locator.

Throws:

DecitaException - If the specified Locator is missing.

mergedWith

public Locators mergedWith(Locators additional)

names

public Set<String> names()