com.massa.mrules.accessor.arithmetic

Class MSingleMathOperation

java.lang.Object

com.massa.mrules.base.AbstractMRulesObject

com.massa.mrules.addon.AbstractAddon

com.massa.mrules.accessor.AbstractReadAccessor

com.massa.mrules.accessor.arithmetic.MSingleMathOperation

All Implemented Interfaces:

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

@PersistantProperty(property="left") @PersistantProperty(property="right") @PersistantProperty(property="operator")
public class MSingleMathOperation
extends AbstractReadAccessor

Allows to perform single mathematic operations. For example, left / right.

See Also:

Serialized Form

Nested Class Summary

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

IReadAccessor.Standalone

Field Summary

Fields

Modifier and Type	Field and Description
protected Class<?>	internalExpectedGenericType
protected Class<?>	internalExpectedType
static String	SINGLE_MATH_ID

Constructor Summary

Constructors

Constructor and Description
MSingleMathOperation()
MSingleMathOperation(IReadAccessor left, IReadAccessor right, IMathOperator operator)

Method Summary

Modifier and Type	Method and Description
MSingleMathOperation	clone() Clones the Addon.
<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.
boolean	equals(Object o)
CostInfo	getEstimatedReadCost(ICompilationContext ctxt) Estimates the reading complexity, to allow callers to optimize calls.
Class<?>	getGenericCollectionType(IContext ctxt) Returns the Generic type, if value is a collection or an array, evaluated : at compilation time for standard compilation at runtime for light compilation and execution phase or null if the type can't be resolved or value is not a collection.
String	getImplementationId() Unique addon implementation ID.
Integer	getInternalCacheIdentifier() Returns null by default.
IReadAccessor	getLeft()
IMathOperator	getOperator()
IReadAccessor	getRight()
Class<?>	getType(IContext ctxt) Returns the value's class, evaluated : at compilation time for standard compilation at runtime for light compilation or null if the type can't be resolved.
int	hashCode()
protected Object	internalGet(IExecutionContext ctxt) Specific addon implementation must be here.
boolean	isCacheUsed() Returns false by default.
boolean	isInternalCacheIdentifierNeeded() This method allows to tell the engine if a cache identifier is needed.
boolean	isShouldIterate() Always false, iteration is not handled by this accessor.
void	setInternalCacheIdentifier(Integer internalIdentifier) Stores nothing.
void	setLeft(IReadAccessor left)
void	setOperator(IMathOperator operator)
void	setRight(IReadAccessor right)
void	toString(OuterWithLevel outer) Method used to send String representation of the current object to the OuterWithLevel.
boolean	wasRegistered(ICompilationContext ctxt, IAddon parent, AddonInfo info) Convenience method, which does nothing.

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

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

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

optimize, resetCachedData, 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

optimize, resetCachedData

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

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Field Detail

SINGLE_MATH_ID

public static final String SINGLE_MATH_ID

See Also:

Constant Field Values

internalExpectedType

protected transient Class<?> internalExpectedType

internalExpectedGenericType

protected transient Class<?> internalExpectedGenericType

Constructor Detail

MSingleMathOperation

public MSingleMathOperation()

MSingleMathOperation

public MSingleMathOperation(IReadAccessor left,
                            IReadAccessor right,
                            IMathOperator operator)

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

wasRegistered

public boolean wasRegistered(ICompilationContext ctxt,
                             IAddon parent,
                             AddonInfo info)

Description copied from class: AbstractAddon

Convenience method, which does nothing. All implementing classes may override to perform internal operations, starting with a "super" call to keep compatibility with future versions.

Specified by:

wasRegistered in interface IAddon

Overrides:

wasRegistered in class AbstractAddon

parent - Parent from which this instance of addon was registered.

info - Addon info for the currently registered addon

Returns:

false

getEstimatedReadCost

public CostInfo getEstimatedReadCost(ICompilationContext ctxt)
                              throws MRuleValidationException

Description copied from interface: IReadAccessor

Estimates the reading complexity, to allow callers to optimize calls. Calls to this method should be done on a compiled accessor, so that all information is available to compute complexity.
Calls to non-compiled instance may return non-accurate results.

Parameters:

ctxt - Compilation context.

Throws:

MRuleValidationException - if validation problem detected.

internalGet

protected Object internalGet(IExecutionContext ctxt)
                      throws MAccessorException

Description copied from class: AbstractReadAccessor

Specific addon implementation must be here.

Specified by:

internalGet in class AbstractReadAccessor

Throws:

MAccessorException

setInternalCacheIdentifier

public final void setInternalCacheIdentifier(Integer internalIdentifier)

Description copied from class: AbstractAddon

Stores nothing.

Specified by:

setInternalCacheIdentifier in interface IAddon

Overrides:

setInternalCacheIdentifier in class AbstractAddon

Parameters:

internalIdentifier - Internal identifier

See Also:

IAddon.getInternalCacheIdentifier()

getInternalCacheIdentifier

public final Integer getInternalCacheIdentifier()

Description copied from class: AbstractAddon

Returns null by default.

Specified by:

getInternalCacheIdentifier in interface IAddon

Overrides:

getInternalCacheIdentifier in class AbstractAddon

Returns:

Internal identifier

See Also:

IAddon.setInternalCacheIdentifier(Integer)

isInternalCacheIdentifierNeeded

public boolean isInternalCacheIdentifierNeeded()

Description copied from class: AbstractAddon

This method allows to tell the engine if a cache identifier is needed. If not, the Addon will not be able to use internal execution cache.

Specified by:

isInternalCacheIdentifierNeeded in interface IAddon

Overrides:

isInternalCacheIdentifierNeeded in class AbstractAddon

Returns:

Internal identifier

See Also:

AbstractAddon.setInternalCacheIdentifier(Integer)

clone

public MSingleMathOperation clone()

Description copied from interface: IAddon

Clones the Addon.
The general contract is that the clone of a compiled Addon is still compiled.

Specified by:

clone in interface IAccessor

Specified by:

clone in interface IReadAccessor

Specified by:

clone in interface IAddon

Specified by:

clone in interface IMRulesObject

Overrides:

clone in class AbstractReadAccessor

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isCacheUsed

public boolean isCacheUsed()

Description copied from class: AbstractAddon

Returns false by default.

Specified by:

isCacheUsed in interface IAddon

Overrides:

isCacheUsed in class AbstractAddon

isShouldIterate

public boolean isShouldIterate()

Always false, iteration is not handled by this accessor.

getType

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

Description copied from interface: IAccessor

Returns the value's class, evaluated :

• at compilation time for standard compilation
• at runtime for light compilation

or null if the type can't be resolved.

Throws:

MAccessorException

getGenericCollectionType

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

Description copied from interface: IAccessor

Returns the Generic type, if value is a collection or an array, evaluated :

• at compilation time for standard compilation
• at runtime for light compilation and execution phase

or null if the type can't be resolved or value is not a collection.

Throws:

MAccessorException

getImplementationId

public String getImplementationId()

Description copied from interface: IAddon

Unique addon implementation ID. In case of conflict, an Class Initialization error will be raised.

toString

public void toString(OuterWithLevel outer)
              throws IOException

Description copied from interface: Outable

Method used to send String representation of the current object to the OuterWithLevel.

Throws:

IOException

getLeft

public IReadAccessor getLeft()

setLeft

public void setLeft(IReadAccessor left)

getRight

public IReadAccessor getRight()

setRight

public void setRight(IReadAccessor right)

getOperator

public IMathOperator getOperator()

setOperator

public void setOperator(IMathOperator operator)