org.deduced.dynamic
Class AbstractDeducedProperty<E>

java.lang.Object
  org.deduced.PropertyImplementation<E>
      org.deduced.dynamic.AbstractDeducedProperty<E>

Type Parameters:

E - the type of value held within the property

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, DeducedProperty<E>, Property<E>

Direct Known Subclasses:

FixedDeducedProperty, RuleDeducedProperty

public abstract class AbstractDeducedProperty<E>
extends PropertyImplementation<E>
implements DeducedProperty<E>

AbstractDeducedProperty stores the common code of deduced properties to keep the use counter

Author:

Steve McDuff

See Also:

Serialized Form

Field Summary

private ContextualPropertyCollection<?,?>	parent parent collection that owns the rule
private PropertyCollection	rule the rule model
private static long	serialVersionUID serialVersionUID
private int	useCounter number of times the rule is being used.

Constructor Summary

AbstractDeducedProperty(ContextualPropertyCollection<?,?> setParent, PropertyCollection<?,?> instance, E value, PropertyCollection<?,?> setRule)
AbstractDeducedProperty constructor

Method Summary

int	decrementUseCounter() (non-JSDoc)
void	delete() (non-Javadoc)
protected abstract void	executeRule() execute the Rule
protected void	executeRuleAnalyzer(DeductionRuleAnalyzer<E> analyzer, java.lang.Object[] inputs) execute the Rule Analyzer and store the value based on the specified inputs.
ContextualPropertyCollection<?,?>	getParent() (non-Javadoc)
PropertyCollection<?,?>	getRule() (non-Javadoc)
int	getUseCounter() get Use Counter current value
int	incrementUseCounter() (non-JSDoc)
void	logRuleExecutionException(java.lang.Throwable e) log Rule Execution Exception

Methods inherited from class org.deduced.PropertyImplementation

arePropertiesEqual, arePropertyValuesEqual, clonePropertyValue, copy, equals, getInstance, getValue, getValueType, hashCode, isValueEqual, resetParentOnValue, setInstance, setValue, setValueOnProperty, setValueParent, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.deduced.Property

copy, getInstance, getValue, getValueType, isValueEqual, setValue

Field Detail

serialVersionUID

private static final long serialVersionUID

serialVersionUID

See Also:

Constant Field Values

parent

private ContextualPropertyCollection<?,?> parent

parent collection that owns the rule

rule

private PropertyCollection rule

the rule model

useCounter

private int useCounter

number of times the rule is being used. If the value is zero, avoid execution.

Constructor Detail

AbstractDeducedProperty

public AbstractDeducedProperty(ContextualPropertyCollection<?,?> setParent,
                               PropertyCollection<?,?> instance,
                               E value,
                               PropertyCollection<?,?> setRule)

AbstractDeducedProperty constructor

Parameters:

setParent - property parent

instance - property instance

value - initial value

setRule - rule

Method Detail

executeRule

protected abstract void executeRule()

execute the Rule

incrementUseCounter

public int incrementUseCounter()

(non-JSDoc)

Specified by:

incrementUseCounter in interface DeducedProperty<E>

Returns:

the current counter value. This value isn't guaranteed to be accurate as some types of properties don't track usage.

See Also:

DeducedProperty.incrementUseCounter()

decrementUseCounter

public int decrementUseCounter()

(non-JSDoc)

Specified by:

decrementUseCounter in interface DeducedProperty<E>

Returns:

the current counter value. This value isn't guaranteed to be accurate as some types of properties don't track usage.

See Also:

DeducedProperty.decrementUseCounter()

getUseCounter

public int getUseCounter()

get Use Counter current value

Returns:

the number of time the property is being used

logRuleExecutionException

public void logRuleExecutionException(java.lang.Throwable e)

log Rule Execution Exception

Parameters:

e - the unexpected exception

executeRuleAnalyzer

protected void executeRuleAnalyzer(DeductionRuleAnalyzer<E> analyzer,
                                   java.lang.Object[] inputs)

execute the Rule Analyzer and store the value based on the specified inputs.

Parameters:

analyzer - the rule analyzer

inputs - the rule inputs

getParent

public ContextualPropertyCollection<?,?> getParent()

(non-Javadoc)

Specified by:

getParent in interface DeducedProperty<E>

Returns:

the collection that owns the rule

See Also:

DeducedProperty.getParent()

delete

public void delete()

(non-Javadoc)

Specified by:

delete in interface DeducedProperty<E>

See Also:

DeducedProperty.delete()

getRule

public PropertyCollection<?,?> getRule()

(non-Javadoc)

Specified by:

getRule in interface DeducedProperty<E>

Returns:

the deduction rule model

See Also:

DeducedProperty.getRule()