Uses of Class
org.hibernate.search.util.common.annotation.Incubating
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Uses of Incubating in org.hibernate.search.backend.elasticsearch.schema.management
Classes in org.hibernate.search.backend.elasticsearch.schema.management with annotations of type Incubating Modifier and Type Interface Description interfaceElasticsearchIndexSchemaExportExtended version of anSchemaExportthat exposes any Elasticsearch-specific methods. -
Uses of Incubating in org.hibernate.search.backend.elasticsearch.search.query
Classes in org.hibernate.search.backend.elasticsearch.search.query with annotations of type Incubating Modifier and Type Interface Description interfaceElasticsearchSearchRequestTransformerA pluggable component that gets the chance to transform search requests (path, body, ...) before they are sent to Elasticsearch.interfaceElasticsearchSearchRequestTransformerContextMethods in org.hibernate.search.backend.elasticsearch.search.query with annotations of type Incubating Modifier and Type Method Description com.google.gson.JsonObjectElasticsearchSearchResult. responseBody() -
Uses of Incubating in org.hibernate.search.backend.elasticsearch.search.query.dsl
Methods in org.hibernate.search.backend.elasticsearch.search.query.dsl with annotations of type Incubating Modifier and Type Method Description ElasticsearchSearchQueryOptionsStep<H,LOS>ElasticsearchSearchQueryOptionsStep. requestTransformer(ElasticsearchSearchRequestTransformer transformer)Set theElasticsearchSearchRequestTransformerfor this search query. -
Uses of Incubating in org.hibernate.search.backend.elasticsearch.work.spi
Classes in org.hibernate.search.backend.elasticsearch.work.spi with annotations of type Incubating Modifier and Type Interface Description interfaceElasticsearchWorkExecutorProvider -
Uses of Incubating in org.hibernate.search.backend.lucene.index
Methods in org.hibernate.search.backend.lucene.index with annotations of type Incubating Modifier and Type Method Description CompletionStage<Long>LuceneIndexManager. computeSizeInBytesAsync(OperationSubmitter operationSubmitter) -
Uses of Incubating in org.hibernate.search.backend.lucene.schema.management
Classes in org.hibernate.search.backend.lucene.schema.management with annotations of type Incubating Modifier and Type Interface Description interfaceLuceneIndexSchemaExportExtended version of anSchemaExportthat exposes any Lucene-specific methods. -
Uses of Incubating in org.hibernate.search.backend.lucene.work.spi
Classes in org.hibernate.search.backend.lucene.work.spi with annotations of type Incubating Modifier and Type Interface Description interfaceLuceneWorkExecutorProvider -
Uses of Incubating in org.hibernate.search.engine.backend
Methods in org.hibernate.search.engine.backend with annotations of type Incubating Modifier and Type Method Description Optional<String>Backend. name() -
Uses of Incubating in org.hibernate.search.engine.backend.document.model.dsl
Classes in org.hibernate.search.engine.backend.document.model.dsl with annotations of type Incubating Modifier and Type Interface Description interfaceIndexSchemaNamedPredicateOptionsStepThe final step in the definition of a named predicate in the index schema.Methods in org.hibernate.search.engine.backend.document.model.dsl with annotations of type Incubating Modifier and Type Method Description IndexSchemaNamedPredicateOptionsStepIndexSchemaElement. namedPredicate(String relativeNamedPredicateName, PredicateDefinition definition)Add a named predicate factory to this index schema element. -
Uses of Incubating in org.hibernate.search.engine.backend.document.model.dsl.spi
Classes in org.hibernate.search.engine.backend.document.model.dsl.spi with annotations of type Incubating Modifier and Type Interface Description interfaceImplicitFieldCollectorinterfaceImplicitFieldContributorOpens an extension point to accept implicit fields. -
Uses of Incubating in org.hibernate.search.engine.backend.schema.management.spi
Methods in org.hibernate.search.engine.backend.schema.management.spi with annotations of type Incubating Modifier and Type Method Description voidIndexSchemaManager. exportExpectedSchema(IndexSchemaCollector collector)Accepts a collector that will receive the schema export represented by this index schema manager. -
Uses of Incubating in org.hibernate.search.engine.backend.work.execution
Classes in org.hibernate.search.engine.backend.work.execution with annotations of type Incubating Modifier and Type Class Description classOperationSubmitterInterface defining how operation should be submitted to the queue or executor. -
Uses of Incubating in org.hibernate.search.engine.cfg.impl
Classes in org.hibernate.search.engine.cfg.impl with annotations of type Incubating Modifier and Type Class Description classConfigurationPropertySourceScopeUtilsProvides shortcuts to create scopes, as well as a quick way to create a fallback property source for a given scope. -
Uses of Incubating in org.hibernate.search.engine.cfg.spi
Classes in org.hibernate.search.engine.cfg.spi with annotations of type Incubating Modifier and Type Interface Description interfaceConfigurationProviderAllows integrators to provide their default configuration properties for various scopes that would override Hibernate Search specific ones.classConfigurationScopeHolds a configuration scope.classConfigurationScopeNamespacesNames of configuration scope namespaces used to construct aConfigurationScope. -
Uses of Incubating in org.hibernate.search.engine.common.execution.spi
Classes in org.hibernate.search.engine.common.execution.spi with annotations of type Incubating Modifier and Type Class Description classDelegatingSimpleScheduledExecutorinterfaceSimpleScheduledExecutor -
Uses of Incubating in org.hibernate.search.engine.common.schema.management
Classes in org.hibernate.search.engine.common.schema.management with annotations of type Incubating Modifier and Type Interface Description interfaceSchemaExportinterfaceSchemaExportExtension<T>An extension to the index schema export, allowing to access backend-specific methods of a schema export. -
Uses of Incubating in org.hibernate.search.engine.common.timing
Classes in org.hibernate.search.engine.common.timing with annotations of type Incubating Modifier and Type Interface Description interfaceDeadlineCommon interface providing a deadline through the methodDeadline.checkRemainingTimeMillis(). -
Uses of Incubating in org.hibernate.search.engine.reporting
Methods in org.hibernate.search.engine.reporting with annotations of type Incubating Modifier and Type Method Description default longFailureHandler. failureFloodingThreshold()When this handler is used for handling mass indexing failures - returns the number of failures during one mass indexing beyond which the failure handler will no longer be notified. -
Uses of Incubating in org.hibernate.search.engine.search.aggregation.dsl
Methods in org.hibernate.search.engine.search.aggregation.dsl with annotations of type Incubating Modifier and Type Method Description StringSearchAggregationFactory. toAbsolutePath(String relativeFieldPath)SearchAggregationFactorySearchAggregationFactory. withRoot(String objectFieldPath)Create a new aggregation factory whose root for all paths passed to the DSL will be the given object field. -
Uses of Incubating in org.hibernate.search.engine.search.predicate.definition
Classes in org.hibernate.search.engine.search.predicate.definition with annotations of type Incubating Modifier and Type Interface Description interfacePredicateDefinitionA component able to define a predicate using the Hibernate Search Predicate DSL.interfacePredicateDefinitionContextThe context passed toPredicateDefinition.create(PredicateDefinitionContext). -
Uses of Incubating in org.hibernate.search.engine.search.predicate.dsl
Classes in org.hibernate.search.engine.search.predicate.dsl with annotations of type Incubating Modifier and Type Interface Description interfaceNamedPredicateOptionsStepThe initial and final step in named predicate definition.Methods in org.hibernate.search.engine.search.predicate.dsl with annotations of type Incubating Modifier and Type Method Description NamedPredicateOptionsStepSearchPredicateFactory. named(String path)Match documents if they match a combination of defined named predicate clauses.StringSearchPredicateFactory. toAbsolutePath(String relativeFieldPath)SearchPredicateFactorySearchPredicateFactory. withRoot(String objectFieldPath)Create a new predicate factory whose root for all paths passed to the DSL will be the given object field. -
Uses of Incubating in org.hibernate.search.engine.search.projection.definition
Classes in org.hibernate.search.engine.search.projection.definition with annotations of type Incubating Modifier and Type Interface Description interfaceProjectionDefinition<P>A component able to define a projection using the Hibernate Search Projection DSL.interfaceProjectionDefinitionContextThe context passed toProjectionDefinition.create(SearchProjectionFactory, ProjectionDefinitionContext). -
Uses of Incubating in org.hibernate.search.engine.search.projection.definition.spi
Classes in org.hibernate.search.engine.search.projection.definition.spi with annotations of type Incubating Modifier and Type Class Description classAbstractProjectionDefinition<P>classConstantProjectionDefinition<T>classFieldProjectionDefinition<P,F>static classFieldProjectionDefinition.MultiValued<F>static classFieldProjectionDefinition.SingleValued<F>classObjectProjectionDefinition<P,T>static classObjectProjectionDefinition.MultiValued<T>static classObjectProjectionDefinition.SingleValued<T> -
Uses of Incubating in org.hibernate.search.engine.search.projection.dsl
Methods in org.hibernate.search.engine.search.projection.dsl with annotations of type Incubating Modifier and Type Method Description HighlightProjectionOptionsStepSearchProjectionFactory. highlight(String fieldPath)Project to highlights, i.e.StringSearchProjectionFactory. toAbsolutePath(String relativeFieldPath)SearchProjectionFactory<R,E>SearchProjectionFactory. withRoot(String objectFieldPath)Create a new projection factory whose root for all paths passed to the DSL will be the given object field. -
Uses of Incubating in org.hibernate.search.engine.search.query.dsl
Methods in org.hibernate.search.engine.search.query.dsl with annotations of type Incubating Modifier and Type Method Description SSearchQueryOptionsStep. highlighter(String highlighterName, Function<? super SearchHighlighterFactory,? extends HighlighterFinalStep> highlighterContributor)Configure a named highlighter.SSearchQueryOptionsStep. highlighter(String highlighterName, SearchHighlighter highlighter)Configure a named highlighter.SSearchQueryOptionsStep. highlighter(Function<? super SearchHighlighterFactory,? extends HighlighterFinalStep> highlighterContributor)Configure the default highlighter.SSearchQueryOptionsStep. highlighter(SearchHighlighter highlighter)Configure the default highlighter. -
Uses of Incubating in org.hibernate.search.engine.search.query.spi
Methods in org.hibernate.search.engine.search.query.spi with annotations of type Incubating Modifier and Type Method Description voidSearchQueryBuilder. highlighter(String highlighterName, SearchHighlighter highlighter)voidSearchQueryBuilder. highlighter(SearchHighlighter queryHighlighter) -
Uses of Incubating in org.hibernate.search.engine.search.sort.dsl
Methods in org.hibernate.search.engine.search.sort.dsl with annotations of type Incubating Modifier and Type Method Description StringSearchSortFactory. toAbsolutePath(String relativeFieldPath)SearchSortFactorySearchSortFactory. withRoot(String objectFieldPath)Create a new sort factory whose root for all paths passed to the DSL will be the given object field. -
Uses of Incubating in org.hibernate.search.mapper.orm.automaticindexing.session
Methods in org.hibernate.search.mapper.orm.automaticindexing.session with annotations of type Incubating Modifier and Type Method Description voidAutomaticIndexingSynchronizationConfigurationContext. operationSubmitter(OperationSubmitter operationSubmitter)Deprecated.Set operation submitter to be applied while executing underlying plans. -
Uses of Incubating in org.hibernate.search.mapper.orm.mapping
Methods in org.hibernate.search.mapper.orm.mapping with annotations of type Incubating Modifier and Type Method Description ContainerExtractorConfigurationContextHibernateOrmMappingConfigurationContext. containerExtractors()Starts the definition of container extractors available for use in mappings.voidSearchMapping. indexingPlanFilter(SearchIndexingPlanFilter filter)Set a filter defining which types must be included/excluded when indexed within indexing plans (either automatically or manually). -
Uses of Incubating in org.hibernate.search.mapper.orm.massindexing
Methods in org.hibernate.search.mapper.orm.massindexing with annotations of type Incubating Modifier and Type Method Description MassIndexerMassIndexer. environment(MassIndexingEnvironment environment)Sets theMassIndexingEnvironment, which can set up an environment (thread locals, ...) in mass indexing threads.MassIndexerMassIndexer. failureFloodingThreshold(long threshold)Sets the threshold for failures that will be reported and sent toMassIndexingFailureHandlerper indexed type.MassIndexerMassIndexer. limitIndexedObjectsTo(long maximum)Stops indexing after having indexed a set amount of objects. -
Uses of Incubating in org.hibernate.search.mapper.orm.schema.management
Methods in org.hibernate.search.mapper.orm.schema.management with annotations of type Incubating Modifier and Type Method Description voidSearchSchemaManager. exportExpectedSchema(Path targetDirectory)Exports the schema represented by this schema manager as a file tree created within the provided target directory.voidSearchSchemaManager. exportExpectedSchema(SearchSchemaCollector collector)Accepts a collector that walks through schema exports created from indexes represented by this schema manager. -
Uses of Incubating in org.hibernate.search.mapper.orm.session
Methods in org.hibernate.search.mapper.orm.session with annotations of type Incubating Modifier and Type Method Description voidSearchSession. indexingPlanFilter(SearchIndexingPlanFilter filter)Set a filter configuration and define which types must be included/excluded when indexed within indexing plans of the current session (either automatically or manually). -
Uses of Incubating in org.hibernate.search.mapper.pojo.bridge.binding
Methods in org.hibernate.search.mapper.pojo.bridge.binding with annotations of type Incubating Modifier and Type Method Description PojoModelValue<I>IdentifierBindingContext. bridgedElement()PojoModelPropertyPropertyBindingContext. bridgedElement()PojoModelTypeRoutingBindingContext. bridgedElement()PojoModelTypeTypeBindingContext. bridgedElement()PojoModelValue<V>ValueBindingContext. bridgedElement() -
Uses of Incubating in org.hibernate.search.mapper.pojo.bridge.builtin.annotation
Classes in org.hibernate.search.mapper.pojo.bridge.builtin.annotation with annotations of type Incubating Modifier and Type Class Description interfaceAlternativeDiscriminatorMark the property as an alternative discriminator for use inAlternativeBinder. -
Uses of Incubating in org.hibernate.search.mapper.pojo.bridge.builtin.programmatic
Classes in org.hibernate.search.mapper.pojo.bridge.builtin.programmatic with annotations of type Incubating Modifier and Type Interface Description interfaceAlternativeBinderThe binder that sets upAlternativeValueBridges.interfaceAlternativeBinderDelegate<D,P>The component responsible for binding one field per alternative, and creating anAlternativeValueBridge.interfaceAlternativeDiscriminatorBinderA binder for markers that mark a property as the discriminator for alternatives for anAlternative bridge.interfaceAlternativeValueBridge<D,P>A component that routes field values to one of multiple index fields based on a discriminator. -
Uses of Incubating in org.hibernate.search.mapper.pojo.bridge.mapping
Methods in org.hibernate.search.mapper.pojo.bridge.mapping with annotations of type Incubating Modifier and Type Method Description <T> DefaultBinderDefinitionStep<?>BridgesConfigurationContext. strictSubTypesOf(Class<T> clazz)Define default binders for properties of a subtype of the given type.<T> DefaultBinderDefinitionStep<?>BridgesConfigurationContext. subTypesOf(Class<T> clazz)Define default binders for properties with the given type or a subtype. -
Uses of Incubating in org.hibernate.search.mapper.pojo.extractor
Classes in org.hibernate.search.mapper.pojo.extractor with annotations of type Incubating Modifier and Type Interface Description interfaceContainerExtractionContextinterfaceContainerExtractor<C,V>An extractor of values from a container.interfaceContainerExtractorConfigurationContextA context to assign names to container extractor implementations.interfaceValueProcessor<T,V,C>A processor of values extracted from a container. -
Uses of Incubating in org.hibernate.search.mapper.pojo.mapping.definition.annotation
Methods in org.hibernate.search.mapper.pojo.mapping.definition.annotation with annotations of type Incubating Modifier and Type Method Description AnnotationMappingConfigurationContextAnnotationMappingConfigurationContext. addJandexIndex(org.jboss.jandex.IndexView jandexIndex)String[]excludePaths()The paths of index fields from the indexed-embedded element that should not be embedded.String[]excludePaths()The paths of nested index field to be excluded, i.e. -
Uses of Incubating in org.hibernate.search.mapper.pojo.mapping.definition.programmatic
Methods in org.hibernate.search.mapper.pojo.mapping.definition.programmatic with annotations of type Incubating Modifier and Type Method Description default PropertyMappingIndexedEmbeddedStepPropertyMappingIndexedEmbeddedStep. excludePaths(String... paths)PropertyMappingIndexedEmbeddedStepPropertyMappingIndexedEmbeddedStep. excludePaths(Collection<String> paths) -
Uses of Incubating in org.hibernate.search.mapper.pojo.massindexing
Classes in org.hibernate.search.mapper.pojo.massindexing with annotations of type Incubating Modifier and Type Interface Description interfaceMassIndexingEnvironmentAn interface for pluggable components that set up and tear down the environment of mass indexing threads, for example, to initializeThreadLocals.Methods in org.hibernate.search.mapper.pojo.massindexing with annotations of type Incubating Modifier and Type Method Description default longMassIndexingFailureHandler. failureFloodingThreshold()Returns the number of failures during one mass indexing beyond which the failure handler will no longer be notified. -
Uses of Incubating in org.hibernate.search.mapper.pojo.massindexing.spi
Methods in org.hibernate.search.mapper.pojo.massindexing.spi with annotations of type Incubating Modifier and Type Method Description PojoMassIndexerPojoMassIndexer. environment(MassIndexingEnvironment environment)Sets theMassIndexingEnvironment, which can set up an environment (thread locals, ...) in mass indexing threads.PojoMassIndexerPojoMassIndexer. failureFloodingThreshold(long threshold)Sets the threshold for failures that will be reported and sent toMassIndexingFailureHandlerper indexed type. -
Uses of Incubating in org.hibernate.search.mapper.pojo.model
Classes in org.hibernate.search.mapper.pojo.model with annotations of type Incubating Modifier and Type Interface Description interfacePojoElementAccessor<T>An accessor allowing the retrieval of an element, for example a property, from a POJO.interfacePojoModelCompositeElementA potentially composite element in the POJO model.interfacePojoModelConstructorParameterA model element representing a constructor parameter to bind.interfacePojoModelElementAn element in the POJO model.interfacePojoModelPropertyA model element representing a property bound to a bridge.interfacePojoModelTypeA model element representing a type bound to a bridge.interfacePojoModelValue<T>A model element representing a value bound to a bridge. -
Uses of Incubating in org.hibernate.search.mapper.pojo.model.dependency
Classes in org.hibernate.search.mapper.pojo.model.dependency with annotations of type Incubating Modifier and Type Interface Description interfacePojoOtherEntityIndexingDependencyConfigurationContextMethods in org.hibernate.search.mapper.pojo.model.dependency with annotations of type Incubating Modifier and Type Method Description default PojoOtherEntityIndexingDependencyConfigurationContextPojoPropertyIndexingDependencyConfigurationContext. fromOtherEntity(Class<?> otherEntityType, String pathFromOtherEntityTypeToBridgedType)Start the declaration of dependencies to properties of another entity, without specifying the path to that other entity.default PojoOtherEntityIndexingDependencyConfigurationContextPojoPropertyIndexingDependencyConfigurationContext. fromOtherEntity(Class<?> otherEntityType, PojoModelPathValueNode pathFromOtherEntityTypeToBridgedType)Start the declaration of dependencies to properties of another entity, without specifying the path to that other entity.PojoOtherEntityIndexingDependencyConfigurationContextPojoPropertyIndexingDependencyConfigurationContext. fromOtherEntity(ContainerExtractorPath extractorPathFromBridgedProperty, Class<?> otherEntityType, PojoModelPathValueNode pathFromOtherEntityTypeToBridgedPropertyExtractedType)Start the declaration of dependencies to properties of another entity, without specifying the path to that other entity.default PojoOtherEntityIndexingDependencyConfigurationContextPojoTypeIndexingDependencyConfigurationContext. fromOtherEntity(Class<?> otherEntityType, String pathFromOtherEntityTypeToBridgedType)Start the declaration of dependencies to properties of another entity, without specifying the path to that other entity.PojoOtherEntityIndexingDependencyConfigurationContextPojoTypeIndexingDependencyConfigurationContext. fromOtherEntity(Class<?> otherEntityType, PojoModelPathValueNode pathFromOtherEntityTypeToBridgedType)Start the declaration of dependencies to properties of another entity, without specifying the path to that other entity.default PojoOtherEntityIndexingDependencyConfigurationContextPojoOtherEntityIndexingDependencyConfigurationContext. use(String pathFromOtherEntityTypeToUsedValue)Declare that the given path is read by the bridge at index time to populate the indexed document.PojoOtherEntityIndexingDependencyConfigurationContextPojoOtherEntityIndexingDependencyConfigurationContext. use(PojoModelPathValueNode pathFromBridgedTypeToUsedValue)Declare that the given path is read by the bridge at index time to populate the indexed document. -
Uses of Incubating in org.hibernate.search.mapper.pojo.schema.management.spi
Methods in org.hibernate.search.mapper.pojo.schema.management.spi with annotations of type Incubating Modifier and Type Method Description voidPojoScopeSchemaManager. exportExpectedSchema(Path targetDirectory)voidPojoScopeSchemaManager. exportExpectedSchema(SearchSchemaCollector collector) -
Uses of Incubating in org.hibernate.search.mapper.pojo.search.definition.binding
Classes in org.hibernate.search.mapper.pojo.search.definition.binding with annotations of type Incubating Modifier and Type Interface Description interfaceProjectionBinderA component able to define a projection using the Hibernate Search Projection DSL.interfaceProjectionBindingContextThe context passed toProjectionBinder.bind(ProjectionBindingContext).interfaceProjectionBindingMultiContextThe context returned byProjectionBindingContext.multi().Methods in org.hibernate.search.mapper.pojo.search.definition.binding with annotations of type Incubating Modifier and Type Method Description PojoModelConstructorParameterProjectionBindingContext. constructorParameter()PojoModelValue<?>ProjectionBindingMultiContext. containerElement()<T> BeanHolder<? extends ProjectionDefinition<T>>ProjectionBindingContext. createCompositeDefinition(Class<T> projectedType)<T> BeanHolder<? extends ProjectionDefinition<T>>ProjectionBindingContext. createObjectDefinition(String fieldPath, Class<T> projectedType, TreeFilterDefinition filter)<T> BeanHolder<? extends ProjectionDefinition<List<T>>>ProjectionBindingContext. createObjectDefinitionMulti(String fieldPath, Class<T> projectedType, TreeFilterDefinition filter)Optional<? extends ProjectionBindingMultiContext>ProjectionBindingContext. multi()Inspects the type of theProjectionBindingContext.constructorParameter()to determine if it may be bound to a multi-valued projection. -
Uses of Incubating in org.hibernate.search.mapper.pojo.work
Classes in org.hibernate.search.mapper.pojo.work with annotations of type Incubating Modifier and Type Interface Description interfaceIndexingPlanSynchronizationStrategyDetermines how the thread will block upon committing a transaction where indexed entities were modified.interfaceIndexingPlanSynchronizationStrategyConfigurationContextclassIndexingPlanSynchronizationStrategyNamesThe names of built-in indexing plan synchronization strategies.interfaceSearchIndexingPlanExecutionReportinterfaceSearchIndexingPlanFilterConfigurer implementers are responsible for specifying which types should be included/excluded from indexing.interfaceSearchIndexingPlanFilterContextA context that helps with the indexing plan filter configuration.Methods in org.hibernate.search.mapper.pojo.work with annotations of type Incubating Modifier and Type Method Description voidIndexingPlanSynchronizationStrategyConfigurationContext. operationSubmitter(OperationSubmitter operationSubmitter)Set operation submitter to be applied while executing underlying plans. -
Uses of Incubating in org.hibernate.search.mapper.pojo.work.impl
Classes in org.hibernate.search.mapper.pojo.work.impl with annotations of type Incubating Modifier and Type Class Description classAsyncIndexingPlanSynchronizationStrategyclassReadSyncIndexingPlanSynchronizationStrategyclassSyncIndexingPlanSynchronizationStrategyclassWriteSyncIndexingPlanSynchronizationStrategy -
Uses of Incubating in org.hibernate.search.mapper.pojo.work.spi
Classes in org.hibernate.search.mapper.pojo.work.spi with annotations of type Incubating Modifier and Type Class Description classConfiguredIndexingPlanSynchronizationStrategyMethods in org.hibernate.search.mapper.pojo.work.spi with annotations of type Incubating Modifier and Type Method Description ConfiguredSearchIndexingPlanFilterPojoWorkSessionContext. configuredIndexingPlanFilter() -
Uses of Incubating in org.hibernate.search.util.common.spi
Classes in org.hibernate.search.util.common.spi with annotations of type Incubating Modifier and Type Interface Description interfaceToStringTreeAppendableImplemented by classes that can be rendered to a string representing a tree.interfaceToStringTreeAppenderAn appender for use inToStringTreeAppendable.
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