org.codehaus.groovy.grails.orm.hibernate.cfg
Class GrailsDomainBinder

java.lang.Object
  extended by org.codehaus.groovy.grails.orm.hibernate.cfg.GrailsDomainBinder

public final class GrailsDomainBinder
extends Object

Handles the binding Grails domain classes and properties to the Hibernate runtime meta model. Based on the HbmBinder code in Hibernate core and influenced by AnnotationsBinder.

Since:
0.1

Created: 06-Jul-2005

Author:
Graeme Rocher

Nested Class Summary
(package private) static class GrailsDomainBinder.CollectionType
          A Collection type, for the moment only Set is supported
(package private) static class GrailsDomainBinder.GrailsCollectionSecondPass
          Second pass class for grails relationships.
(package private) static class GrailsDomainBinder.ListSecondPass
           
(package private) static class GrailsDomainBinder.MapSecondPass
           
 
Constructor Summary
GrailsDomainBinder()
           
 
Method Summary
static void bindClass(GrailsDomainClass domainClass, org.hibernate.cfg.Mappings mappings)
          Binds a Grails domain class to the Hibernate runtime meta model
protected static void bindNumericColumnConstraints(org.hibernate.mapping.Column column, ConstrainedProperty constrainedProperty)
          Interrogates the specified constraints looking for any constraints that would limit the precision and/or scale of the property's value.
static void bindRoot(GrailsDomainClass domainClass, org.hibernate.cfg.Mappings mappings)
          Binds a root class (one with no super classes) to the runtime meta model based on the supplied Grails domain class
protected static void bindStringColumnConstraints(org.hibernate.mapping.Column column, ConstrainedProperty constrainedProperty)
          Interrogates the specified constraints looking for any constraints that would limit the length of the property's value.
protected static void createClassProperties(GrailsDomainClass domainClass, org.hibernate.mapping.PersistentClass persistentClass, org.hibernate.cfg.Mappings mappings)
          Creates and binds the properties for the specified Grails domain class and PersistantClass and binds them to the Hibernate runtime meta model
static Mapping evaluateMapping(GrailsDomainClass domainClass)
          Evaluates a Mapping object from the domain class if it has a mapping closure
static Mapping getMapping(Class theClass)
          Obtains a mapping object for the given domain class nam
static Mapping getMapping(GrailsDomainClass domainClass)
          Obtains a mapping object for the given domain class nam
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

GrailsDomainBinder

public GrailsDomainBinder()
Method Detail

bindClass

public static void bindClass(GrailsDomainClass domainClass,
                             org.hibernate.cfg.Mappings mappings)
                      throws org.hibernate.MappingException
Binds a Grails domain class to the Hibernate runtime meta model

Parameters:
domainClass - The domain class to bind
mappings - The existing mappings
Throws:
org.hibernate.MappingException - Thrown if the domain class uses inheritance which is not supported

evaluateMapping

public static Mapping evaluateMapping(GrailsDomainClass domainClass)
Evaluates a Mapping object from the domain class if it has a mapping closure

Parameters:
domainClass - The domain class

getMapping

public static Mapping getMapping(Class theClass)
Obtains a mapping object for the given domain class nam

Parameters:
theClass - The domain class in question
Returns:
A Mapping object or null

getMapping

public static Mapping getMapping(GrailsDomainClass domainClass)
Obtains a mapping object for the given domain class nam

Parameters:
domainClass - The domain class in question
Returns:
A Mapping object or null

bindRoot

public static void bindRoot(GrailsDomainClass domainClass,
                            org.hibernate.cfg.Mappings mappings)
Binds a root class (one with no super classes) to the runtime meta model based on the supplied Grails domain class

Parameters:
domainClass - The Grails domain class
mappings - The Hibernate Mappings object

createClassProperties

protected static void createClassProperties(GrailsDomainClass domainClass,
                                            org.hibernate.mapping.PersistentClass persistentClass,
                                            org.hibernate.cfg.Mappings mappings)
Creates and binds the properties for the specified Grails domain class and PersistantClass and binds them to the Hibernate runtime meta model

Parameters:
domainClass - The Grails domain class
persistentClass - The Hibernate PersistentClass instance
mappings - The Hibernate Mappings instance

bindStringColumnConstraints

protected static void bindStringColumnConstraints(org.hibernate.mapping.Column column,
                                                  ConstrainedProperty constrainedProperty)
Interrogates the specified constraints looking for any constraints that would limit the length of the property's value. If such constraints exist, this method adjusts the length of the column accordingly.

Parameters:
column - the column that corresponds to the property
constrainedProperty - the property's constraints

bindNumericColumnConstraints

protected static void bindNumericColumnConstraints(org.hibernate.mapping.Column column,
                                                   ConstrainedProperty constrainedProperty)
Interrogates the specified constraints looking for any constraints that would limit the precision and/or scale of the property's value. If such constraints exist, this method adjusts the precision and/or scale of the column accordingly.

Parameters:
column - the column that corresponds to the property
constrainedProperty - the property's constraints


Copyright (c) 2005-2009 The Grails project