com.massa.mrules.accessor

Class AbstractMapAccessor

java.lang.Object

com.massa.mrules.base.AbstractMRulesObject

com.massa.mrules.addon.AbstractAddon

com.massa.mrules.accessor.AbstractReadAccessor

com.massa.mrules.accessor.AbstractReadSourceAccessor

com.massa.mrules.accessor.AbstractMapAccessor

All Implemented Interfaces:

IAccessor, IAccessorValueHandler, IReadAccessor, IAddon, IMRulesObject, Outable, Serializable, Cloneable

Direct Known Subclasses:

MMapEntriesAccessor, MMapKeysAccessor, MMapValuesAccessor

public abstract class AbstractMapAccessor
extends AbstractReadSourceAccessor

Common parent class for accessors allowing to access keys, values or entries of Maps.

Since:

1.1.0

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.massa.mrules.accessor.IReadAccessor

IReadAccessor.Standalone

Field Summary

Fields inherited from class com.massa.mrules.accessor.AbstractReadSourceAccessor

internalExpectedGenericType, internalExpectedType, source

Constructor Summary

Constructors

Constructor and Description
AbstractMapAccessor()
AbstractMapAccessor(IReadAccessor source)

Method Summary

Modifier and Type	Method and Description
<G,C extends Collection<G>> void	compileCollection(ICompilationContext ctxt, Class<C> expectedType, Class<G> expectedGenericType) Implementation to handle case when expected result is a Collection.
void	compileValue(ICompilationContext ctxt, Class<?> expectedType) Implementation to handle case when expected result is a single value.
protected abstract Class<?>	getDefaultType()
Class<?>	getType(IContext ctxt) Returns requested type if any, otherwise the source's type if any.
protected abstract Object	handleMap(Map<?,?> value)
protected boolean	parseCollections() Always true.
Object	specificHandleValue(IExecutionContext ctxt, Object value) Override this to apply specific transformation on value read from source accessor.

Methods inherited from class com.massa.mrules.accessor.AbstractReadSourceAccessor

clone, equals, getEstimatedReadCost, getGenericCollectionType, getInternalCacheIdentifier, getSource, handleValue, hashCode, internalGet, isCacheUsed, isConstantValue, isInternalCacheIdentifierNeeded, isShouldIterate, resetCachedData, setInternalCacheIdentifier, setSource, toString, wasRegistered

Methods inherited from class com.massa.mrules.accessor.AbstractReadAccessor

castToExpected, compileRead, compileRead, compileRead, compileRead, get, getGenericTypes, isShouldBeWrappedToConstantValue, isShouldNotCache

Methods inherited from class com.massa.mrules.addon.AbstractAddon

optimize, toString

Methods inherited from class com.massa.mrules.base.AbstractMRulesObject

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.massa.mrules.addon.IAddon

getImplementationId, optimize

Methods inherited from interface com.massa.mrules.base.IMRulesObject

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Constructor Detail

AbstractMapAccessor

public AbstractMapAccessor()

AbstractMapAccessor

public AbstractMapAccessor(IReadAccessor source)

Method Detail

compileValue

public void compileValue(ICompilationContext ctxt,
                         Class<?> expectedType)
                  throws MRuleValidationException

Description copied from class: AbstractReadAccessor

Implementation to handle case when expected result is a single value.

Specified by:

compileValue in class AbstractReadAccessor

Throws:

MRuleValidationException

compileCollection

public <G,C extends Collection<G>> void compileCollection(ICompilationContext ctxt,
                                                          Class<C> expectedType,
                                                          Class<G> expectedGenericType)
                                                   throws MRuleValidationException

Description copied from class: AbstractReadAccessor

Implementation to handle case when expected result is a Collection.

Specified by:

compileCollection in class AbstractReadAccessor

Throws:

MRuleValidationException

specificHandleValue

public Object specificHandleValue(IExecutionContext ctxt,
                                  Object value)
                           throws MAccessorException

Description copied from class: AbstractReadSourceAccessor

Override this to apply specific transformation on value read from source accessor.

Specified by:

specificHandleValue in class AbstractReadSourceAccessor

Throws:

MAccessorException

handleMap

protected abstract Object handleMap(Map<?,?> value)

getDefaultType

protected abstract Class<?> getDefaultType()

parseCollections

protected boolean parseCollections()

Always true.

Specified by:

parseCollections in class AbstractReadSourceAccessor

getType

public Class<?> getType(IContext ctxt)
                 throws MAccessorException

Description copied from class: AbstractReadSourceAccessor

Returns requested type if any, otherwise the source's type if any.

Specified by:

getType in interface IAccessor

Overrides:

getType in class AbstractReadSourceAccessor

Throws:

MAccessorException