com.whitestein.lsps.engine.lang

Class RuntimeToPersistentConverter

java.lang.Object

com.whitestein.lsps.engine.lang.RuntimeToPersistentConverter

public class RuntimeToPersistentConverter
extends Object

Author:

rba

Field Summary

Fields

Modifier and Type	Field and Description
protected ModelInstance	modelInstance
protected ModelProvider	modelProvider

Constructor Summary

Constructors

Constructor and Description
RuntimeToPersistentConverter(ModelInstance modelInstance, ModelProvider modelProvider) Creates new instance.

Method Summary

Modifier and Type	Method and Description
void	addToBatchLoading(Collection<ExternalValue> externalValues) Register external values to be loaded in batch.
void	addToBatchLoading(ExternalValue externalValue) Deprecated. Use addToBatchLoading(Collection)
Value	convertToPersistent(Object value, Type type) This method takes runtime object and converts it to its underlying persistent representation.
static Value	convertToPersistent(ValueHolder value) Return value for a value holder.
Object	convertToRuntime(long valueId) This method finds persistent representation of a value with the specified id and returns its runtime representation.
Object	convertToRuntime(Value val) This method takes persistent representation of a value and returns its runtime representation.
ExternalTypeFactory	getTypeFactory(RecordType type) Returns a type factory for the given type or null if there is none.
void	validate(Object value, Type type) Throws IllegalArgumentException if value is not assignable to type.

Methods inherited from class java.lang.Object

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

Field Detail

modelProvider

protected final ModelProvider modelProvider

modelInstance

protected final ModelInstance modelInstance

Constructor Detail

RuntimeToPersistentConverter

public RuntimeToPersistentConverter(ModelInstance modelInstance,
                                    ModelProvider modelProvider)

Creates new instance.

Parameters:

modelInstance - the model instance for the persistent values

modelProvider - the model provider

Method Detail

convertToPersistent

public static Value convertToPersistent(ValueHolder value)

Return value for a value holder.

Parameters:

value -

Returns:

value for a value holder

convertToPersistent

public Value convertToPersistent(Object value,
                                 Type type)

This method takes runtime object and converts it to its underlying persistent representation. In addition this method performs type checking and automatic type conversion.

Parameters:

value -

type -

Returns:

underlying persistent implementation

Throws:

NullPointerException - if type is null

IllegalArgumentException - if value cannot be assigned to type

addToBatchLoading

@Deprecated
public void addToBatchLoading(ExternalValue externalValue)

Deprecated. Use addToBatchLoading(Collection)

Register external value to be loaded in batch

Parameters:

externalValue -

addToBatchLoading

public void addToBatchLoading(Collection<ExternalValue> externalValues)

Register external values to be loaded in batch.

Parameters:

externalValues -

convertToRuntime

public Object convertToRuntime(long valueId)

This method finds persistent representation of a value with the specified id and returns its runtime representation.

Parameters:

valueId -

Returns:

runtime representation of persistent value

Throws:

NullPointerException - if no persistent value is found

convertToRuntime

public Object convertToRuntime(Value val)

This method takes persistent representation of a value and returns its runtime representation.

Parameters:

val -

Returns:

runtime representation of persistent value

Throws:

NullPointerException - if val is null

getTypeFactory

public ExternalTypeFactory getTypeFactory(RecordType type)

Returns a type factory for the given type or null if there is none.

Parameters:

type -

Returns:

a type factory for the given type

validate

public void validate(Object value,
                     Type type)

Throws IllegalArgumentException if value is not assignable to type.

Parameters:

value -

type -