Classes

The core building blocks of your Layline JavaScript applications — from data handling and time manipulation to workflow orchestration and external service integration.

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Data & Messaging

Class	Description
Arith64	Performs correct 64-bit arithmetic and bitwise operations for large integers.
CompressionUtils	Utility class for compressing and decompressing data.
DataDictionary	Navigate your data dictionary hierarchy through this property. The structure mirrors your project's format and data dictionary definitions.
DataDictionaryEntity	Represents a single node in your data dictionary hierarchy for type-safe access to message fields.
Message	The message payload. Its structure mirrors the data dictionary definition for this message type.
PackedMessage	Restores the packed message to a full Message instance.
StringUtils	Utility class for common string operations: encoding, decoding, validation, and charset conversion.

Date & Time

Class	Description
DateTime	Represents a point in time with date, time, and timezone offset information.
Duration	Represents an amount of time — days, hours, minutes, seconds, milliseconds, or nanoseconds.
LocalDate	Represents a date without time or timezone — just year, month, and day.
Time	Represents a time of day without date or timezone — just hour, minute, second, and nanosecond.
TimeZone	Represents a timezone for use with DateTime, LocalDate, and Time, handling daylight saving time automatically.
ZoneOffset	Represents a fixed offset from UTC with no daylight saving time changes.

Workflow & Processing

Class	Description
Counter	A thread-safe counter for tracking numeric values — message counts, totals, or any incrementing/decrementing metric.
JavaScriptProcessor	Defines the lifecycle hooks available in a JavaScript Asset — startup, message arrival, stream boundaries, and shutdown.
Metrics	Retrieves or creates a counter metric.
OutputPort	Represents a connection from one processor to another within a workflow.
Processor	Provides access to the current processor's configuration and runtime properties.
Stream	Represents the current data stream being processed.
Workflow	Provides access to the current workflow's metadata — its name and data dictionary.

Services & Integration

Class	Description
Connection	Represents an active link to a service (e.g., JDBC database, HTTP endpoint) with transaction support.
Email	Send emails through a configured Email Service.
Service	Services linked to your JavaScript Asset are available through the services object using their configured names.
TimerService	Schedule and manage timers that trigger workflows at specific times or intervals.
Vendor	Groups related StatusCode definitions together.

Status & Error Handling

Class	Description
Status	Creates a Status instance from a vendor and status code. Additional arguments fill placeholder positions in the message template.
StatusCode	A single entry in a Resource Status Definition Asset — the template definition for a Status.
StatusRegistry	Provides access to all defined vendors and status codes in your project.