Record Class SchemaDescriptor<T>

java.lang.Object

java.lang.Record

org.j7m.middleware.codec.api.SchemaDescriptor<T>

Type Parameters:

T - application DTO or record type

Record Components:

schemaId - stable language-neutral identifier

version - positive schema version

javaType - explicitly trusted target class

fields - complete field definitions

encoder - trusted field extractor

factory - trusted constructor called only after complete payload validation

public record SchemaDescriptor<T>(String schemaId, int version, Class<T> javaType, List<SchemaField> fields, Function<T, Map<String,Object>> encoder, Function<Map<String,Object>, T> factory)
extends Record

Explicit application trust boundary: only these registered functions may extract and construct DTOs. Functions must be thread-safe and have no externally visible side effects.

Constructor Summary

Constructors

Constructor	Description
SchemaDescriptor(String schemaId, int version, Class<T> javaType, List<SchemaField> fields, Function<T, Map<String,Object>> encoder, Function<Map<String,Object>, T> factory)	Validates and snapshots the descriptor; registration never inspects arbitrary classes.

Method Summary

Modifier and Type	Method	Description
Function<T, Map<String,Object>>	encoder()	Returns the value of the encoder record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
Function<Map<String,Object>, T>	factory()	Returns the value of the factory record component.
List<SchemaField>	fields()	Returns the value of the fields record component.
final int	hashCode()	Returns a hash code value for this object.
Class<T>	javaType()	Returns the value of the javaType record component.
String	schemaId()	Returns the value of the schemaId record component.
final String	toString()	Returns a string representation of this record class.
int	version()	Returns the value of the version record component.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

SchemaDescriptor

public SchemaDescriptor(String schemaId,
 int version,
 Class<T> javaType,
 List<SchemaField> fields,
 Function<T, Map<String,Object>> encoder,
 Function<Map<String,Object>, T> factory)

Validates and snapshots the descriptor; registration never inspects arbitrary classes.

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

schemaId

public String schemaId()

Returns the value of the schemaId record component.

Returns:

the value of the schemaId record component

version

public int version()

Returns the value of the version record component.

Returns:

the value of the version record component

javaType

public Class<T> javaType()

Returns the value of the javaType record component.

Returns:

the value of the javaType record component

fields

public List<SchemaField> fields()

Returns the value of the fields record component.

Returns:

the value of the fields record component

encoder

public Function<T, Map<String,Object>> encoder()

Returns the value of the encoder record component.

Returns:

the value of the encoder record component

factory

public Function<Map<String,Object>, T> factory()

Returns the value of the factory record component.

Returns:

the value of the factory record component