Package com.axelor.meta.query.backend.json

Class JsonQueryBackend

java.lang.Object

com.axelor.meta.query.backend.json.JsonQueryBackend

All Implemented Interfaces:

QueryBackend

@Singleton
public class JsonQueryBackend
extends Object
implements QueryBackend

Constructor Summary

Constructors

Constructor	Description
JsonQueryBackend()

Method Summary

Modifier and Type	Method	Description
List<MetaJsonField>	findFields(String modelName)	The model's custom fields, empty when it declares none.
MetaJsonModel	findModel(String modelName)
String	renderField(String alias, ResolvedField field)
String	renderRelationJoin(QueryJoinClause.RelationJoin join, Function<Object,String> binder)
ResolvedField	resolveField(ResolvedModel model, String path)
ResolvedModel	resolveModel(String modelName)
ResolvedModel	resolveRelationTarget(ResolvedField field)
QueryPredicate	rootPredicate(QuerySource source)
String	type()

Methods inherited from class java.lang.Object

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

Constructor Details

JsonQueryBackend

public JsonQueryBackend()

Method Details

type

public String type()

Specified by:

type in interface QueryBackend

resolveModel

public ResolvedModel resolveModel(String modelName)

Specified by:

resolveModel in interface QueryBackend

resolveField

public ResolvedField resolveField(ResolvedModel model,
 String path)

Specified by:

resolveField in interface QueryBackend

renderField

public String renderField(String alias,
 ResolvedField field)

Specified by:

renderField in interface QueryBackend

resolveRelationTarget

public ResolvedModel resolveRelationTarget(ResolvedField field)

Specified by:

resolveRelationTarget in interface QueryBackend

renderRelationJoin

public String renderRelationJoin(QueryJoinClause.RelationJoin join,
 Function<Object,String> binder)

Specified by:

renderRelationJoin in interface QueryBackend

rootPredicate

public QueryPredicate rootPredicate(QuerySource source)

Specified by:

rootPredicate in interface QueryBackend

findModel

public MetaJsonModel findModel(String modelName)

findFields

public List<MetaJsonField> findFields(String modelName)

The model's custom fields, empty when it declares none. A model that has never had a field written reads back as null rather than empty, so every caller that walks the fields goes through here instead of dereferencing the collection.