# Package org.apache.cayenne.access.types

package org.apache.cayenne.access.types
Defines an extendable mechanism to map Java types to JDBC types.

- Related Packages
  Package
  Description
  org.apache.cayenne.access
  Contains classes that make up Cayenne ORM stack.
- Class
  Description
  BigDecimalType
  BigDecimalValueType
  BigIntegerValueType
  BooleanType
  Handles `java.lang.Boolean` mapping.
  ByteArrayType
  Handles `byte[]`, mapping it as either of JDBC types - BLOB or (VAR)BINARY.
  ByteType
  Handles `java.lang.Byte` type mapping.
  CalendarType<T extends Calendar>
  ExtendedType that handles `Calendar` fields.
  CharacterValueType
  This is char and Character type mapped to zero or one char String.
  CharType
  Handles `java.lang.String`, mapping it as either of JDBC types - CLOB or (VAR)CHAR.
  DateType
  DefaultValueObjectTypeRegistry
  Default implementation of `ValueObjectTypeRegistry`
  DoubleType
  DurationType
  EnumType<T extends Enum<T>>
  An ExtendedType that handles an enum class.
  EnumTypeFactory
  ExtendedTypeFactory for handling Enum types.
  ExtendedEnumType<T extends Enum<T>>
  An ExtendedType that handles a Java Enum based upon the Cayenne ExtendedEnumeration interface.
  ExtendedType<T>
  Defines methods to read Java objects from JDBC ResultSets and write as parameters of PreparedStatements.
  ExtendedTypeFactory
  ExtendedType factory interface.
  ExtendedTypeMap
  Stores ExtendedTypes, implementing an algorithm to determine the right type for a given Java class.
  FloatType
  GeoJsonType
  IntegerType
  InternalUnsupportedTypeFactory
  Extended type factory that produces types for Cayenne internal value types that could potentially make it to the DB.
  InternalUnsupportedTypeFactory.Marker
  Marker interface, that should be used by any internal value types, that could potentially get to the SQL
  JsonType
  LocalDateTimeValueType
  LocalDateValueType
  LocalTimeValueType
  LongType
  ObjectType
  This is a default ExtendedType that relies on JDBC driver to determine the result type.
  PeriodValueType
  ShortType
  Handles `java.lang.Short` type mapping.
  TimestampType
  TimeType
  UtilDateType
  Maps `java.util.Date` to any of the three database date/time types: TIME, DATE, TIMESTAMP.
  UUIDValueType
  ValueObjectType<V,T>
  Descriptor and serialization helper for custom value objects that can be safely stored in the DB.
  ValueObjectTypeFactory
  ValueObjectTypeRegistry
  Registry of user-defined descriptors of custom value objects' classes.
  VoidType
  A noop type that is sometimes useful to suppress extended types operations.
  WktType