Module org.evrete.core

Package org.evrete

Class KnowledgeService

java.lang.Object

org.evrete.runtime.AbstractKnowledgeService

org.evrete.KnowledgeService

All Implemented Interfaces:

EventBus

public class KnowledgeService
extends org.evrete.runtime.AbstractKnowledgeService

KnowledgeService is a root element of every Evrete-based application. It holds the initial Configuration, references to all required SPI implementations, and an instance of the Java ExecutorService.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	KnowledgeService.Builder	The Builder class is responsible for constructing instances of the KnowledgeService class.

Constructor Summary

Constructors

Constructor	Description
KnowledgeService()
KnowledgeService(Configuration conf)

Method Summary

Modifier and Type	Method	Description
static KnowledgeService.Builder	builder()
static KnowledgeService.Builder	builder(Configuration configuration)
ClassLoader	getClassLoader()
Configuration	getConfiguration()
DSLKnowledgeProvider	getDSL(Class<? extends DSLKnowledgeProvider> dsl)	Deprecated. this method is deprecated and scheduled for removal.
DSLKnowledgeProvider	getDSL(String dsl)	Deprecated. this method is deprecated and scheduled for removal.
MemoryFactoryProvider	getMemoryFactoryProvider()
SourceCompilerProvider	getSourceCompilerProvider()
TypeResolverProvider	getTypeResolverProvider()
Knowledge	newKnowledge()
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, File... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, InputStream... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, Reader... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, Class<?>... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, String... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, URL... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, TypeResolver resolver, File... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, TypeResolver typeResolver, InputStream... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, TypeResolver typeResolver, Reader... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, TypeResolver typeResolver, Class<?>... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(Class<? extends DSLKnowledgeProvider> dsl, TypeResolver typeResolver, URL... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String name)
Knowledge	newKnowledge(String dsl, File... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, InputStream... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, Reader... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, Class<?>... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, String... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, URL... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, TypeResolver resolver, File... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, TypeResolver typeResolver, InputStream... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, TypeResolver typeResolver, Reader... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, TypeResolver typeResolver, Class<?>... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(String dsl, TypeResolver typeResolver, URL... resources)	Deprecated. this method is deprecated and scheduled for removal.
Knowledge	newKnowledge(TypeResolver typeResolver)	Deprecated. use the default newKnowledge() method
Knowledge	newKnowledge(TypeResolver typeResolver, String name)	Deprecated. use the default newKnowledge(String) method
StatefulSession	newStatefulSession()	This method is a shorthand for newKnowledge().newStatefulSession() which returns an empty session instance.
StatelessSession	newStatelessSession()	This method is a shorthand for newKnowledge().newStatelessSession() which returns an empty session instance.
void	setClassLoader(ClassLoader classLoader)
void	shutdown()	Shuts down the service.

Methods inherited from class org.evrete.runtime.AbstractKnowledgeService

getExecutor, getMessageBus, getPublisher, getServiceSubscriptions, shutdownInner

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.evrete.api.events.EventBus

subscribe, subscribe, subscribeAsync

Constructor Details

KnowledgeService

public KnowledgeService(Configuration conf)

KnowledgeService

public KnowledgeService()

Method Details

builder

public static KnowledgeService.Builder builder()

builder

public static KnowledgeService.Builder builder(Configuration configuration)

getClassLoader

public ClassLoader getClassLoader()

shutdown

public void shutdown()

Shuts down the service.

setClassLoader

public void setClassLoader(ClassLoader classLoader)

newKnowledge

public Knowledge newKnowledge()

Returns:

an empty Knowledge instance

newKnowledge

public Knowledge newKnowledge(String name)

Returns:

an empty Knowledge instance

newKnowledge

@Deprecated
public Knowledge newKnowledge(TypeResolver typeResolver)

Deprecated.

use the default newKnowledge() method

Parameters:

typeResolver - the type resolver to use in the newly created Knowledge instance

Returns:

an empty Knowledge instance

newKnowledge

@Deprecated
public Knowledge newKnowledge(TypeResolver typeResolver,
 String name)

Deprecated.

use the default newKnowledge(String) method

Parameters:

typeResolver - the type resolver to use in the newly created Knowledge instance

Returns:

an empty Knowledge instance

getDSL

@Deprecated
public DSLKnowledgeProvider getDSL(String dsl)

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the DSLKnowledgeProvider.load(String) utility method instead.

A convenience method to load specific DSL implementation;

Parameters:

dsl - DSL name

Returns:

new instance of DSL provider

Throws:

IllegalStateException - if no implementation found by the given name

getDSL

@Deprecated
public DSLKnowledgeProvider getDSL(Class<? extends DSLKnowledgeProvider> dsl)

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the DSLKnowledgeProvider.load(String) utility method instead.

A convenience method to load specific DSL implementation;

Parameters:

dsl - DSL implementation class

Returns:

new instance of DSL provider

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 URL... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL name

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 URL... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 File... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL name

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 File... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 TypeResolver resolver,
 File... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

resolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 TypeResolver resolver,
 File... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

resolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 TypeResolver typeResolver,
 URL... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL name

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 TypeResolver typeResolver,
 URL... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 Reader... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL name

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 Reader... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 TypeResolver typeResolver,
 Reader... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL name

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 TypeResolver typeResolver,
 Reader... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 InputStream... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL name

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 InputStream... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 TypeResolver typeResolver,
 InputStream... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL name

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 TypeResolver typeResolver,
 InputStream... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Parameters:

dsl - DSL class

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the data sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 Class<?>... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

This is a convenience method. The implementation gets URLs of each class and calls newKnowledge(String, URL...)

Parameters:

dsl - DSL name

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the class sources.

getConfiguration

public Configuration getConfiguration()

getMemoryFactoryProvider

public MemoryFactoryProvider getMemoryFactoryProvider()

getSourceCompilerProvider

public SourceCompilerProvider getSourceCompilerProvider()

getTypeResolverProvider

public TypeResolverProvider getTypeResolverProvider()

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 Class<?>... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

This is a convenience method. The implementation gets URLs of each class and calls newKnowledge(String, URL...)

Parameters:

dsl - DSL class

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the class sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 TypeResolver typeResolver,
 Class<?>... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

This is a convenience method. The implementation gets URLs of each class and calls newKnowledge(String, TypeResolver, URL...)

Parameters:

dsl - DSL name

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the class sources.

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 TypeResolver typeResolver,
 Class<?>... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

This is a convenience method. The implementation gets URLs of each class and calls newKnowledge(String, TypeResolver, URL...)

Parameters:

dsl - DSL class

typeResolver - TypeResolver to use

resources - DSL resources

Returns:

a Knowledge instance built by DSL provider from given resources.

Throws:

IOException - if an error occurs when reading the sources.

newStatefulSession

public StatefulSession newStatefulSession()

This method is a shorthand for newKnowledge().newStatefulSession() which returns an empty session instance.

Returns:

an empty StatefulSession

newStatelessSession

public StatelessSession newStatelessSession()

This method is a shorthand for newKnowledge().newStatelessSession() which returns an empty session instance.

Returns:

an empty StatelessSession

newKnowledge

@Deprecated
public Knowledge newKnowledge(String dsl,
 String... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(String, Object) approach or the

Creates a new Knowledge instance from provided resources.

Throws:

IOException

newKnowledge

@Deprecated
public Knowledge newKnowledge(Class<? extends DSLKnowledgeProvider> dsl,
 String... resources)
                       throws IOException

Deprecated.

this method is deprecated and scheduled for removal. Use the new RuntimeContext.importRules(DSLKnowledgeProvider, Object) approach or the

Creates a new Knowledge instance from provided resources.

Throws:

IOException