Package org.apache.tinkerpop.gremlin.structure.util

Class LabelCardinalityValidator

java.lang.Object

org.apache.tinkerpop.gremlin.structure.util.LabelCardinalityValidator

public final class LabelCardinalityValidator
extends Object

Validates label operations against a LabelCardinality constraint. All methods are stateless and static.

This class is separated from the enum so that cardinality remains a pure data descriptor while validation logic can be extended, overridden by providers, or tested independently.

Since:

4.0.0

Method Summary

Modifier and Type	Method	Description
static void	validateAdd(LabelCardinality cardinality, Set<String> currentLabels, String label, String... moreLabels)	Validates that adding labels would not violate cardinality constraints.
static void	validateCreation(LabelCardinality cardinality, Set<String> labels)	Validates that a set of labels is valid for element creation under this cardinality.
static void	validateDrop(LabelCardinality cardinality, Set<String> currentLabels, String label, String... moreLabels)	Validates that dropping specific labels would not violate cardinality constraints.
static void	validateDropAll(LabelCardinality cardinality, Set<String> currentLabels)	Validates that dropping all labels would not violate cardinality constraints.

Methods inherited from class java.lang.Object

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

Method Details

validateAdd

public static void validateAdd(LabelCardinality cardinality,
 Set<String> currentLabels,
 String label,
 String... moreLabels)

Validates that adding labels would not violate cardinality constraints.

Throws:

IllegalStateException - if mutation is not supported or max would be exceeded

validateDrop

public static void validateDrop(LabelCardinality cardinality,
 Set<String> currentLabels,
 String label,
 String... moreLabels)

Validates that dropping specific labels would not violate cardinality constraints. Simulates the removal to check whether the minimum label count would be violated.

Throws:

IllegalStateException - if mutation is not supported or min would be violated

validateDropAll

public static void validateDropAll(LabelCardinality cardinality,
 Set<String> currentLabels)

Validates that dropping all labels would not violate cardinality constraints.

Throws:

IllegalStateException - if mutation is not supported or min > 0

validateCreation

public static void validateCreation(LabelCardinality cardinality,
 Set<String> labels)

Validates that a set of labels is valid for element creation under this cardinality.

Throws:

IllegalStateException - if the label count violates min or max