com.massa.mrules.operator.math

Interface IMathOperator

All Superinterfaces:

Cloneable, IAddon, IMRulesObject, Outable, Serializable

All Known Implementing Classes:

AbstractMathOperator, DIVIDED, MINUS, MODULO, MULTIPLIED, PLUS, POWER

public interface IMathOperator
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
IMathOperator	clone() Clones the Operator.
void	compile(ICompilationContext ctxt, IReadAccessor left, IReadAccessor right) For additional validations, specific to this operator.
Number	compute(IExecutionContext ctxt, IReadAccessor left, IReadAccessor right) Evaluate result for this operator.
String	getRepresentation() String representation for human read
int	getWeight() Operator with higher weight has priority.

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,
             IReadAccessor left,
             IReadAccessor right)
      throws MRuleValidationException

For additional validations, specific to this operator.

Parameters:

left - If known, left operand. If unknown, null value is handled.

right - If known, right operand. If unknown, null value is handled.

Throws:

MRuleValidationException

compute

Number compute(IExecutionContext ctxt,
               IReadAccessor left,
               IReadAccessor right)
        throws MAccessorException

Evaluate result for this operator.

Throws:

MAccessorException

getWeight

int getWeight()

Operator with higher weight has priority.
For example: in the following, "n2 / n3" should be evaluated before.
n1 + n2 / n3

Since:

1.10.0

getRepresentation

String getRepresentation()

String representation for human read

clone

IMathOperator 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