Package com.onec.spring

Class OnecJdbcConverter

java.lang.Object
org.springframework.data.relational.core.conversion.AbstractRelationalConverter
org.springframework.data.relational.core.conversion.MappingRelationalConverter
org.springframework.data.jdbc.core.convert.MappingJdbcConverter
com.onec.spring.OnecJdbcConverter
All Implemented Interfaces:
org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware, org.springframework.core.env.EnvironmentCapable, org.springframework.data.jdbc.core.convert.JdbcConverter, org.springframework.data.relational.core.conversion.RelationalConverter
public class OnecJdbcConverter extends org.springframework.data.jdbc.core.convert.MappingJdbcConverter
A MappingJdbcConverter that fixes how framework enums map onto their database column type.

Spring Data JDBC resolves the column type of any enum property to String via JdbcColumnTypes (which hard-maps Enum -> String) before consulting custom conversions. The schema generator, however, emits a UUID column for @Enumeration attributes (each enum value has a stable name-based UUID), and EnumUuidConverters registers an Enum -> UUID writing converter. Because the converter's target (UUID) is never asked for — the framework requests an Enum -> String conversion against the resolved column type — the enum is bound as its name() string into a UUID column and the insert fails at runtime (issue #26).

This subclass overrides getColumnType(RelationalPersistentProperty) so that any enum for which a custom write target is registered (i.e. our framework enums, which convert to UUID) reports that write target as its column type. With the column type now UUID, the writing path converts the enum through EnumUuidConverters.EnumToUuid and binds a real UUID. Enums without a custom write target keep Spring's default String behaviour.

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.springframework.data.relational.core.conversion.MappingRelationalConverter

    org.springframework.data.relational.core.conversion.MappingRelationalConverter.AggregatePathValueProvider, org.springframework.data.relational.core.conversion.MappingRelationalConverter.ConversionContext, org.springframework.data.relational.core.conversion.MappingRelationalConverter.DefaultConversionContext, org.springframework.data.relational.core.conversion.MappingRelationalConverter.DocumentValueProvider, org.springframework.data.relational.core.conversion.MappingRelationalConverter.ProjectingConversionContext, org.springframework.data.relational.core.conversion.MappingRelationalConverter.RelationalPropertyValueProvider

  • Constructor Summary

    Constructors
    Constructor
    Description
    OnecJdbcConverter(org.springframework.data.relational.core.mapping.RelationalMappingContext context, org.springframework.data.jdbc.core.convert.RelationResolver relationResolver, org.springframework.data.convert.CustomConversions conversions, org.springframework.data.jdbc.core.convert.JdbcTypeFactory typeFactory)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    Class<?>
    getColumnType(org.springframework.data.relational.core.mapping.RelationalPersistentProperty property)
     

    Methods inherited from class org.springframework.data.jdbc.core.convert.MappingJdbcConverter

    getTargetSqlType, newValueProvider, readAndResolve, readValue, writeJdbcValue, writeValue

    Methods inherited from class org.springframework.data.relational.core.conversion.MappingRelationalConverter

    doReadProjection, getConversionContext, getEnvironment, getPotentiallyConvertedSimpleRead, getPropertyAccessor, introspectProjection, newProjectingConversionContext, project, read, read, readAggregate, readAggregate, readCollectionOrArray, readMap, setApplicationContext

    Methods inherited from class org.springframework.data.relational.core.conversion.AbstractRelationalConverter

    getConversions, getConversionService, getEntityInstantiators, getMappingContext

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface org.springframework.context.ApplicationContextAware

    setApplicationContext

    Methods inherited from interface org.springframework.data.jdbc.core.convert.JdbcConverter

    getMappingContext, readAndResolve, readAndResolve, writeJdbcValue

    Methods inherited from interface org.springframework.data.relational.core.conversion.RelationalConverter

    getConversionService, getEntityInstantiators, getPropertyAccessor, introspectProjection, project, read

  • Constructor Details

    • OnecJdbcConverter

      public OnecJdbcConverter(org.springframework.data.relational.core.mapping.RelationalMappingContext context, org.springframework.data.jdbc.core.convert.RelationResolver relationResolver, org.springframework.data.convert.CustomConversions conversions, org.springframework.data.jdbc.core.convert.JdbcTypeFactory typeFactory)

  • Method Details

    • getColumnType

      public Class<?> getColumnType(org.springframework.data.relational.core.mapping.RelationalPersistentProperty property)
      Specified by:
      getColumnType in interface org.springframework.data.jdbc.core.convert.JdbcConverter
      Overrides:
      getColumnType in class org.springframework.data.jdbc.core.convert.MappingJdbcConverter