Package com.oorian.validation.validators

Class CompareValidator

java.lang.Object

com.oorian.validation.validators.CompareValidator

All Implemented Interfaces:

FormValidator

public class CompareValidator
extends Object
implements FormValidator

Form-level validator that compares two field values.

CompareValidator implements FormValidator to provide cross-field comparison validation. It compares two fields using a specified operation (equals, not equals, less than, etc.).

Common use cases include:

• Password confirmation matching
• Email confirmation matching
• Date range validation (start date before end date)
• Numeric comparisons between fields

Usage:

 // Password confirmation
 CompareValidator passwordConfirm = new CompareValidator(
     "password", "confirmPassword", Operation.EQUALS)
     .withMessage("Passwords do not match");

 // Date range validation
 CompareValidator dateRange = new CompareValidator(
     "startDate", "endDate", Operation.LESS_THAN)
     .withMessage("Start date must be before end date");

 // Add to ValidatedForm
 validatedForm.addFormValidator(passwordConfirm);
 validatedForm.addFormValidator(dateRange);
 

Since:

2025

Version:

1.0

Author:

Marvin P. Warble Jr.

See Also:

• FormValidator

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	CompareValidator.Operation	Comparison operations supported by the validator.

Constructor Summary

Constructors

Constructor	Description
CompareValidator(String field1Name, String field2Name, CompareValidator.Operation operation)	Creates a CompareValidator for the specified fields and operation.

Method Summary

Modifier and Type	Method	Description
String	getField1Name()	Returns the name of the first field.
String	getField2Name()	Returns the name of the second field.
String	getMessage()	Returns the error message for this validator.
CompareValidator.Operation	getOperation()	Returns the comparison operation.
ValidationResult	validate(ValidationContext context)	Validates the form using all field values from the context.
CompareValidator	withMessage(String message)	Sets a custom error message.

Methods inherited from class java.lang.Object

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

Constructor Details

CompareValidator

public CompareValidator(String field1Name,
 String field2Name,
 CompareValidator.Operation operation)

Creates a CompareValidator for the specified fields and operation.

Parameters:

field1Name - The name of the first field

field2Name - The name of the second field

operation - The comparison operation

Method Details

withMessage

public CompareValidator withMessage(String message)

Sets a custom error message.

Parameters:

message - The error message

Returns:

This validator for method chaining

validate

public ValidationResult validate(ValidationContext context)

Description copied from interface: FormValidator

Validates the form using all field values from the context.

Specified by:

validate in interface FormValidator

Parameters:

context - The validation context containing all form field values

Returns:

The validation result

getMessage

public String getMessage()

Returns the error message for this validator.

Returns:

The error message

getField1Name

public String getField1Name()

Returns the name of the first field.

Returns:

The first field name

getField2Name

public String getField2Name()

Returns the name of the second field.

Returns:

The second field name

getOperation

public CompareValidator.Operation getOperation()

Returns the comparison operation.

Returns:

The operation