Package no.sikt.graphitron.generators.context

Class NodeIdReferenceHelpers

java.lang.Object

no.sikt.graphitron.generators.context.NodeIdReferenceHelpers

public class NodeIdReferenceHelpers
extends Object

Utility methods for determining whether a @nodeId field is a cross-table reference and resolving the foreign key and column mappings needed for the generated code.

Constructor Summary

Constructors

Constructor	Description
NodeIdReferenceHelpers()

Method Summary

Modifier and Type	Method	Description
static Optional<org.jooq.ForeignKey<?,?>>	findForeignKeyForNodeIdField(GenerationField field, ProcessedSchema schema, JOOQMapping currentTable)	Resolves the foreign key connecting currentTable to the node type's target table for a @nodeId reference field.
static boolean	isNodeIdReferenceField(ObjectField objectField, ProcessedSchema schema)	Determines whether a @nodeId field is a reference by resolving the current table from the field's container type or its previous table object.
static boolean	isNodeIdReferenceField(GenerationField field, ProcessedSchema schema, JOOQMapping currentTable)	Determines whether a @nodeId field is a reference.
static List<String>	resolveColumnNamesForNodeIdField(GenerationField field, ProcessedSchema schema, JOOQMapping currentTable)	Returns the Java column names to use for a @nodeId field given the current table context.

Methods inherited from class java.lang.Object

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

Constructor Details

NodeIdReferenceHelpers

public NodeIdReferenceHelpers()

Method Details

isNodeIdReferenceField

public static boolean isNodeIdReferenceField(GenerationField field,
 ProcessedSchema schema,
 JOOQMapping currentTable)

Determines whether a @nodeId field is a reference. Returns true when the field has explicit @reference directives, or when its node type's target table differs from currentTable.

Parameters:

field - the @nodeId field

schema - the processed schema.

currentTable - the current table in which the field is currently being resolved, or null if unknown.

Returns:

true if the field references a node on a different table.

isNodeIdReferenceField

public static boolean isNodeIdReferenceField(ObjectField objectField,
 ProcessedSchema schema)

Determines whether a @nodeId field is a reference by resolving the current table from the field's container type or its previous table object.

Parameters:

objectField - the @nodeId object field

schema - the processed schema.

Returns:

true if the field references a node on a different table than its previous table.

See Also:

• isNodeIdReferenceField(GenerationField, ProcessedSchema, JOOQMapping)

resolveColumnNamesForNodeIdField

public static List<String> resolveColumnNamesForNodeIdField(GenerationField field,
 ProcessedSchema schema,
 JOOQMapping currentTable)

Returns the Java column names to use for a @nodeId field given the current table context. For references, maps the node's key columns through the foreign key to the current table's columns. Returns the node configuration's key columns directly if the field is not a reference.

Parameters:

field - the field carrying the @nodeId directive.

schema - the processed schema.

currentTable - the current table in which the field is currently being resolved, or null if unknown.

Returns:

ordered list of Java column names for the key fields.

findForeignKeyForNodeIdField

public static Optional<org.jooq.ForeignKey<?,?>> findForeignKeyForNodeIdField(GenerationField field,
 ProcessedSchema schema,
 JOOQMapping currentTable)

Resolves the foreign key connecting currentTable to the node type's target table for a @nodeId reference field. Returns empty if the field is not a reference.

Parameters:

field - the @nodeId field

schema - the processed schema.

currentTable - the current table in which the field is currently being resolved, or null if unknown.

Returns:

the foreign key, or empty if the field is not a reference.