Package software.amazon.lambda.durable.util

Class ParameterValidator

java.lang.Object

software.amazon.lambda.durable.util.ParameterValidator

public final class ParameterValidator
extends Object

Utility class for validating input parameters in the Durable Execution SDK.

Provides common validation methods to ensure consistent error messages and validation logic across the SDK.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_OPERATION_NAME_LENGTH

Method Summary

Modifier and Type	Method	Description
static void	validateDuration(Duration duration, String parameterName)	Validates that a duration is at least 1 second.
static void	validateOperationName(String name)
static void	validateOperationName(String name, int maxLength)
static void	validateOptionalDuration(Duration duration, String parameterName)	Validates that an optional duration (if provided) is at least 1 second.
static void	validateOptionalPositiveInteger(Integer value, String parameterName)	Validates that an optional integer value (if provided) is positive (greater than 0).
static void	validateOrderedCollection(Collection<?> items)	Validates that a collection has deterministic iteration order.
static void	validatePositiveInteger(Integer value, String parameterName)	Validates that an integer value is positive (greater than 0).

Methods inherited from class java.lang.Object

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

Field Details

MAX_OPERATION_NAME_LENGTH

public static final int MAX_OPERATION_NAME_LENGTH

See Also:

• Constant Field Values

Method Details

validateDuration

public static void validateDuration(Duration duration,
 String parameterName)

Validates that a duration is at least 1 second.

Parameters:

duration - the duration to validate

parameterName - the name of the parameter (for error messages)

Throws:

IllegalArgumentException - if duration is null or less than 1 second

validateOptionalDuration

public static void validateOptionalDuration(Duration duration,
 String parameterName)

Validates that an optional duration (if provided) is at least 1 second.

Parameters:

duration - the duration to validate (can be null)

parameterName - the name of the parameter (for error messages)

Throws:

IllegalArgumentException - if duration is non-null and less than 1 second

validatePositiveInteger

public static void validatePositiveInteger(Integer value,
 String parameterName)

Validates that an integer value is positive (greater than 0).

Parameters:

value - the value to validate

parameterName - the name of the parameter (for error messages)

Throws:

IllegalArgumentException - if value is null or not positive

validateOptionalPositiveInteger

public static void validateOptionalPositiveInteger(Integer value,
 String parameterName)

Validates that an optional integer value (if provided) is positive (greater than 0).

Parameters:

value - the value to validate (can be null)

parameterName - the name of the parameter (for error messages)

Throws:

IllegalArgumentException - if value is non-null and not positive

validateOperationName

public static void validateOperationName(String name)

validateOperationName

public static void validateOperationName(String name,
 int maxLength)

validateOrderedCollection

public static void validateOrderedCollection(Collection<?> items)

Validates that a collection has deterministic iteration order.

Rejects known unordered collection types: HashSet (but not LinkedHashSet, which has stable insertion-order iteration), and views returned by HashMap, IdentityHashMap, WeakHashMap, and ConcurrentHashMap.

Parameters:

items - the collection to validate

Throws:

IllegalArgumentException - if items is null or has non-deterministic iteration order