design.unstructured.stix.evaluator

Class PatternEvaluator

java.lang.Object

design.unstructured.stix.evaluator.PatternEvaluator

All Implemented Interfaces:

ComparisonEvaluator

public class PatternEvaluator
extends Object
implements ComparisonEvaluator

Evaluates the pattern expression tree. An object resolver (use the ObjectPathResolver) is required to supply an object path value. If a resolver is not available, this class will do nothing.

Constructor Summary

Constructors

Constructor and Description
PatternEvaluator(Pattern pattern, ObjectPathResolver resolver, ComparisonEvaluator comparisonEvaluator, Object object) Use the ObjectPathResolver interface to resolve the patterns object path.
PatternEvaluator(Pattern pattern, ObjectPathResolver resolver, Object object) comparisonEvaluator defaults to PatternEvaluator.

Method Summary

Modifier and Type	Method and Description
Boolean	get() Runs the evaluation on the pattern and returns the result of the expression.
boolean	isEqual(Object contextObject, Object patternObject)
boolean	isGreaterThan(Number contextObject, Number patternObject)
boolean	isGreaterThanOrEqual(Number contextObject, Number patternObject)
boolean	isIn(Object contextObject, Set<Object> patternObject)
boolean	isLessThan(Number contextObject, Number patternObject)
boolean	isLessThanOrEqual(Number contextObject, Number patternObject)
boolean	isNotEqual(Object contextObject, Object patternObject)
boolean	matches(Object contextObject, Object patternObject)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PatternEvaluator

public PatternEvaluator(Pattern pattern,
                        ObjectPathResolver resolver,
                        Object object)
                 throws PatternEvaluatorException

comparisonEvaluator defaults to PatternEvaluator.

Throws:

PatternEvaluatorException

See Also:

PatternEvaluator(Pattern, ObjectPathResolver, ComparisonEvaluator, Object)

PatternEvaluator

public PatternEvaluator(Pattern pattern,
                        ObjectPathResolver resolver,
                        ComparisonEvaluator comparisonEvaluator,
                        Object object)
                 throws PatternEvaluatorException

Use the ObjectPathResolver interface to resolve the patterns object path. An expression will be evaluated regardless if the resolver is able to provide a value. Passing an empty expression tree or passing a null resolver will result in an exception.

Parameters:

pattern -

resolver -

Throws:

PatternEvaluatorException

Method Detail

get

public Boolean get()
            throws StixMappingException,
                   PatternEvaluatorException

Runs the evaluation on the pattern and returns the result of the expression. The execution depends on the complexity and depth of the expression tree.

Returns:

the result of the expression in this pattern

Throws:

StixMappingException

PatternEvaluatorException

isEqual

public boolean isEqual(Object contextObject,
                       Object patternObject)

Specified by:

isEqual in interface ComparisonEvaluator

isNotEqual

public boolean isNotEqual(Object contextObject,
                          Object patternObject)

Specified by:

isNotEqual in interface ComparisonEvaluator

isIn

public boolean isIn(Object contextObject,
                    Set<Object> patternObject)

Specified by:

isIn in interface ComparisonEvaluator

isGreaterThan

public boolean isGreaterThan(Number contextObject,
                             Number patternObject)

Specified by:

isGreaterThan in interface ComparisonEvaluator

isGreaterThanOrEqual

public boolean isGreaterThanOrEqual(Number contextObject,
                                    Number patternObject)

Specified by:

isGreaterThanOrEqual in interface ComparisonEvaluator

isLessThan

public boolean isLessThan(Number contextObject,
                          Number patternObject)

Specified by:

isLessThan in interface ComparisonEvaluator

isLessThanOrEqual

public boolean isLessThanOrEqual(Number contextObject,
                                 Number patternObject)

Specified by:

isLessThanOrEqual in interface ComparisonEvaluator

matches

public boolean matches(Object contextObject,
                       Object patternObject)

Specified by:

matches in interface ComparisonEvaluator