Package org.eclipse.persistence.mappings.converters

Class TypeConversionConverter

java.lang.Object
org.eclipse.persistence.mappings.converters.TypeConversionConverter
All Implemented Interfaces:
Serializable, CoreConverter<DatabaseMapping,Session>, org.eclipse.persistence.internal.descriptors.ClassNameConversionRequired, Converter
public class TypeConversionConverter extends Object implements Converter, org.eclipse.persistence.internal.descriptors.ClassNameConversionRequired
Purpose: Type conversion converters are used to explicitly map a database type to a Java type.
See Also:
Author:
James Sutherland

  • Field Details

    • mapping

      protected DatabaseMapping mapping

    • dataClass

      protected Class dataClass
      Field type

    • dataClassName

      protected String dataClassName

    • objectClass

      protected Class objectClass
      Object type

    • objectClassName

      protected String objectClassName

  • Constructor Details

    • TypeConversionConverter

      public TypeConversionConverter()
      PUBLIC: Default constructor.

    • TypeConversionConverter

      public TypeConversionConverter(DatabaseMapping mapping)
      PUBLIC: Default constructor.

  • Method Details

    • convertClassNamesToClasses

      public void convertClassNamesToClasses(ClassLoader classLoader)
      INTERNAL: Convert all the class-name-based settings in this converter to actual class-based settings. This method is used when converting a project that has been built with class names to a project with classes. This method is implemented by subclasses as necessary.
      Specified by:
      convertClassNamesToClasses in interface org.eclipse.persistence.internal.descriptors.ClassNameConversionRequired
      Parameters:
      classLoader -

    • convertDataValueToObjectValue

      public Object convertDataValueToObjectValue(Object fieldValue, Session session)
      INTERNAL: The field value must first be converted to the field type, then the attribute type.
      Specified by:
      convertDataValueToObjectValue in interface Converter
      Specified by:
      convertDataValueToObjectValue in interface CoreConverter<DatabaseMapping,Session>

    • getObjectClass

      public Class getObjectClass()
      PUBLIC: Returns the class type of the object value.

    • getObjectClassName

      public String getObjectClassName()
      INTERNAL: Return the name of the object type for the MW usage.

    • getDataClass

      public Class getDataClass()
      PUBLIC: Returns the class type of the data value.

    • getDataClassName

      public String getDataClassName()
      INTERNAL: Return the name of the data type for the MW usage.

    • setDataClass

      public void setDataClass(Class dataClass)
      PUBLIC: Set the class type of the data value.

    • setDataClassName

      public void setDataClassName(String dataClassName)
      INTERNAL: Set the name of the data type for the MW usage.

    • setObjectClass

      public void setObjectClass(Class objectClass)
      PUBLIC: Set the class type of the object value.

    • setObjectClassName

      public void setObjectClassName(String objectClassName)
      INTERNAL: Set the name of the object type for the MW usage.

    • convertObjectValueToDataValue

      public Object convertObjectValueToDataValue(Object attributeValue, Session session)
      INTERNAL: Convert to the field class.
      Specified by:
      convertObjectValueToDataValue in interface Converter
      Specified by:
      convertObjectValueToDataValue in interface CoreConverter<DatabaseMapping,Session>

    • initialize

      public void initialize(DatabaseMapping mapping, Session session)
      INTERNAL: Set the mapping.
      Specified by:
      initialize in interface Converter
      Specified by:
      initialize in interface CoreConverter<DatabaseMapping,Session>

    • getMapping

      protected DatabaseMapping getMapping()
      INTERNAL: Return the mapping.

    • isMutable

      public boolean isMutable()
      INTERNAL: If the converter converts the value to a non-atomic value, i.e. a value that can have its' parts changed without being replaced, then it must return false, serialization can be non-atomic.
      Specified by:
      isMutable in interface Converter