Interface FieldValidator

All Known Implementing Classes:

CapacityValidator, FargateCpuMemoryValidator

public interface FieldValidator

Custom validator for configuration field cross-field validation.

Validators enable complex validation logic that depends on multiple fields or external state. They are executed after basic field-level validation (required, min, max, allowedValues, pattern).

Built-in Validators:

• CapacityValidator - Validates maxCapacity >= minCapacity
• FargateCpuMemoryValidator - Validates AWS Fargate CPU/memory combinations

Usage in Annotations:

@ConfigField(
    displayName = "Maximum Capacity",
    validators = {"CapacityValidator"}
)
public int maxCapacity = 10;

Implementing Custom Validators:

public class CustomValidator implements FieldValidator {
    @Override
    public ValidationResult validate(
        ConfigFieldInfo field,
        Object value,
        Object config
    ) {
        // Access other fields via reflection
        // Return ValidationResult.ok() or ValidationResult.error(message)
    }
}

Since:

3.0.0

Method Summary

Modifier and Type	Method	Description
ValidationResult	validate(ConfigFieldInfo field, Object value, Object config)	Validates a field value in the context of the complete configuration.

Method Details

validate

ValidationResult validate(ConfigFieldInfo field,
 Object value,
 Object config)

Validates a field value in the context of the complete configuration.

Parameters:

field - metadata about the field being validated

value - the value to validate

config - the complete configuration object (allows accessing other fields)

Returns:

validation result (ok or error with message)