Package org.gcube.informationsystem.resourceregistry.queries.json.base.standalone

Class JsonQueryPropertySchema

java.lang.Object

org.gcube.informationsystem.resourceregistry.queries.json.base.JsonQueryElement

org.gcube.informationsystem.resourceregistry.queries.json.base.standalone.JsonQueryPropertySchema

public class JsonQueryPropertySchema
extends JsonQueryElement

Translates a JSON query subtree representing a PropertySchema definition.

PropertySchema definitions are persisted as plain OrientDB documents rather than graph vertices/edges, but the MATCH engine still accepts a non-graph class as a direct pattern entry point (verified empirically), so this class follows the exact same flat/standalone shape as JsonQueryEntitySchema/JsonQueryRelationSchema rather than requiring a different query mechanism.

Author:

Luca Frosini (ISTI - CNR)

Field Summary

Fields inherited from class org.gcube.informationsystem.resourceregistry.queries.json.base.JsonQueryElement

accessType, alias, breadcrumb, entryPoint, fieldNamesToRemove, fieldsToEmit, jsonNode, logger, objectMapper, polymorphic, position, projection, queryParameterIndex, queryParameters, size, type

Constructor Summary

Constructors

Constructor	Description
JsonQueryPropertySchema(org.gcube.com.fasterxml.jackson.databind.JsonNode jsonQuery)	Creates a new JsonQueryPropertySchema instance for the specified JSON query subtree.

Method Summary

Modifier and Type	Method	Description
protected StringBuffer	getSpecificMatchQuery(List<JsonQueryElement> childrenBreadcrumb)	Generates the specific MATCH query snippet for this element's subclass (subclass hook).

Methods inherited from class org.gcube.informationsystem.resourceregistry.queries.json.base.JsonQueryElement

addConstraints, addFieldToEmit, createMatchQuery, createQuery, evaluateNode, generateAlias, getAlias, getAlias, getBreadcrumb, getChildrenBreadcrumb, getKey, getPosition, getQueryParameters, getScalarValue, getType, getValue, isEntryPoint, isProjection, setBreadcrumb, setEntryPoint, setPolymorphic, setPosition, setProjection, validateType, wrapMatchQuery

Methods inherited from class java.lang.Object

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

Constructor Details

JsonQueryPropertySchema

public JsonQueryPropertySchema(org.gcube.com.fasterxml.jackson.databind.JsonNode jsonQuery)
                        throws org.gcube.informationsystem.resourceregistry.api.exceptions.types.SchemaException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Creates a new JsonQueryPropertySchema instance for the specified JSON query subtree.

Parameters:

jsonQuery - the JSON query node representing the PropertySchema definition

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.types.SchemaException - if schema validation fails

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - on database or lookup error

Method Details

getSpecificMatchQuery

protected StringBuffer getSpecificMatchQuery(List<JsonQueryElement> childrenBreadcrumb)
                                      throws org.gcube.informationsystem.resourceregistry.api.exceptions.types.SchemaException,
org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException

Description copied from class: JsonQueryElement

Generates the specific MATCH query snippet for this element's subclass (subclass hook).

Specified by:

getSpecificMatchQuery in class JsonQueryElement

Parameters:

childrenBreadcrumb - the list of child query elements visited

Returns:

the MATCH query snippet string buffer

Throws:

org.gcube.informationsystem.resourceregistry.api.exceptions.types.SchemaException - if schema validation fails

org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException - on database error