com.massa.mrules.operator.logical

Interface ILogicalOperator

All Superinterfaces:

Cloneable, IAddon, IMRulesObject, Outable, Serializable

All Known Implementing Classes:

AbstractLogicalOperator, AND, OR, VALBETWEEN, XOR

public interface ILogicalOperator
extends IAddon

Interface specifying methods of logical operator implementations. This kind of operator applies logical computation over results of conditions.
Note that ALL implementations have to be thread safe for execution.

Method Summary

Modifier and Type	Method and Description
ILogicalOperator	clone() Clones the Operator.
void	compile(ICompilationContext ctxt, Iterable<ICondition> conditions) For additional validations, specific to this operator.
boolean	evaluate(IExecutionContext ctxt, Iterable<ICondition> conditions) Evaluate result for this operator.
String	getRepresentation() String representation for human read
int	getWeight() Operator with higher weight has priority.
boolean	isKeepConditionsOrder() Tells if condition order is important.
boolean	isMergePossible() Tells if two sets of conditions which should be evaluated with the same operator could be merged.

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

getImplementationId, getInternalCacheIdentifier, isCacheUsed, isInternalCacheIdentifierNeeded, optimize, resetCachedData, setInternalCacheIdentifier, wasRegistered

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

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Methods inherited from interface com.massa.mrules.util.out.Outable

toString

Method Detail

compile

void compile(ICompilationContext ctxt,
             Iterable<ICondition> conditions)
      throws MRuleValidationException

For additional validations, specific to this operator.

Parameters:

conditions - If known, conditions to iterate on. If unknown, null value is handled.

Throws:

MRuleValidationException

evaluate

boolean evaluate(IExecutionContext ctxt,
                 Iterable<ICondition> conditions)
          throws MConditionEvaluationException

Evaluate result for this operator.

Throws:

MConditionEvaluationException

getWeight

int getWeight()

Operator with higher weight has priority.
For example: in the following, "Condition2 AND Condition3" should be evaluated before.
Condition1 OR Condition2 AND Condition3

Since:

1.10.0

isKeepConditionsOrder

boolean isKeepConditionsOrder()

Tells if condition order is important.

isMergePossible

boolean isMergePossible()

Tells if two sets of conditions which should be evaluated with the same operator could be merged.
For example : [C1 and C2) and (c3 andc4)] can be merged into one set of conditions.

getRepresentation

String getRepresentation()

String representation for human read

clone

ILogicalOperator clone()

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

Specified by:

clone in interface IAddon

Specified by:

clone in interface IMRulesObject