//$Id: Property.java 10247 2006-08-11 18:49:33Z [email protected] $
package org.hibernate.mapping;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Iterator;
import java.util.StringTokenizer;
import org.hibernate.MappingException;
import org.hibernate.PropertyNotFoundException;
import org.hibernate.EntityMode;
import org.hibernate.engine.CascadeStyle;
import org.hibernate.engine.Mapping;
import org.hibernate.property.Getter;
import org.hibernate.property.PropertyAccessor;
import org.hibernate.property.PropertyAccessorFactory;
import org.hibernate.property.Setter;
import org.hibernate.type.AbstractComponentType;
import org.hibernate.type.Type;
import org.hibernate.util.ArrayHelper;
/**
* Represents a property as part of an entity or a component.
*
* @author Gavin King
*/
public class Property implements Serializable, MetaAttributable {
private String name;
private Value value;
private String cascade;
private boolean updateable = true;
private boolean insertable = true;
private boolean selectable = true;
private boolean optimisticLocked = true;
private PropertyGeneration generation = PropertyGeneration.NEVER;
private String propertyAccessorName;
private boolean lazy;
private boolean optional;
private String nodeName;
private java.util.Map metaAttributes;
private PersistentClass persistentClass;
private boolean naturalIdentifier;
public boolean isBackRef() {
return false;
}
public Type getType() throws MappingException {
return value.getType();
}
public int getColumnSpan() {
return value.getColumnSpan();
}
public Iterator getColumnIterator() {
return value.getColumnIterator();
}
public String getName() {
return name;
}
public boolean isComposite() {
return value instanceof Component;
}
public Value getValue() {
return value;
}
public boolean isPrimitive(Class clazz) {
return getGetter(clazz).getReturnType().isPrimitive();
}
public CascadeStyle getCascadeStyle() throws MappingException {
Type type = value.getType();
if ( type.isComponentType() && !type.isAnyType() ) {
AbstractComponentType actype = (AbstractComponentType) type;
int length = actype.getSubtypes().length;
for ( int i=0; i<length; i++ ) {
if ( actype.getCascadeStyle(i)!=CascadeStyle.NONE ) return CascadeStyle.ALL;
}
return CascadeStyle.NONE;
}
else if ( cascade==null || cascade.equals("none") ) {
return CascadeStyle.NONE;
}
else {
StringTokenizer tokens = new StringTokenizer(cascade, ", ");
CascadeStyle[] styles = new CascadeStyle[ tokens.countTokens() ] ;
int i=0;
while ( tokens.hasMoreTokens() ) {
styles[i++] = CascadeStyle.getCascadeStyle( tokens.nextToken() );
}
return new CascadeStyle.MultipleCascadeStyle(styles);
}
}
public String getCascade() {
return cascade;
}
public void setCascade(String cascade) {
this.cascade = cascade;
}
public void setName(String name) {
this.name = name==null ? null : name.intern();
}
public void setValue(Value value) {
this.value = value;
}
public boolean isUpdateable() {
// if the property mapping consists of all formulas,
// make it non-updateable
final boolean[] columnUpdateability = value.getColumnUpdateability();
return updateable && (
//columnUpdateability.length==0 ||
!ArrayHelper.isAllFalse(columnUpdateability)
);
}
public boolean isInsertable() {
// if the property mapping consists of all formulas,
// make it insertable
final boolean[] columnInsertability = value.getColumnInsertability();
return insertable && (
columnInsertability.length==0 ||
!ArrayHelper.isAllFalse(columnInsertability)
);
}
public PropertyGeneration getGeneration() {
return generation;
}
public void setGeneration(PropertyGeneration generation) {
this.generation = generation;
}
public void setUpdateable(boolean mutable) {
this.updateable = mutable;
}
public void setInsertable(boolean insertable) {
this.insertable = insertable;
}
public String getPropertyAccessorName() {
return propertyAccessorName;
}
public void setPropertyAccessorName(String string) {
propertyAccessorName = string;
}
/**
* Approximate!
*/
boolean isNullable() {
return value==null || value.isNullable();
}
public boolean isBasicPropertyAccessor() {
return propertyAccessorName==null || "property".equals(propertyAccessorName);
}
public java.util.Map getMetaAttributes() {
return metaAttributes;
}
public MetaAttribute getMetaAttribute(String attributeName) {
return metaAttributes==null?null:(MetaAttribute) metaAttributes.get(attributeName);
}
public void setMetaAttributes(java.util.Map metas) {
this.metaAttributes = metas;
}
public boolean isValid(Mapping mapping) throws MappingException {
return getValue().isValid(mapping);
}
public String toString() {
return getClass().getName() + '(' + name + ')';
}
public void setLazy(boolean lazy) {
this.lazy=lazy;
}
public boolean isLazy() {
if ( value instanceof ToOne ) {
// both many-to-one and one-to-one are represented as a
// Property. EntityPersister is relying on this value to
// determine "lazy fetch groups" in terms of field-level
// interception. So we need to make sure that we return
// true here for the case of many-to-one and one-to-one
// with lazy="no-proxy"
//
// * impl note - lazy="no-proxy" currently forces both
// lazy and unwrap to be set to true. The other case we
// are extremely interested in here is that of lazy="proxy"
// where lazy is set to true, but unwrap is set to false.
// thus we use both here under the assumption that this
// return is really only ever used during persister
// construction to determine the lazy property/field fetch
// groupings. If that assertion changes then this check
// needs to change as well. Partially, this is an issue with
// the overloading of the term "lazy" here...
ToOne toOneValue = ( ToOne ) value;
return toOneValue.isLazy() && toOneValue.isUnwrapProxy();
}
return lazy;
}
public boolean isOptimisticLocked() {
return optimisticLocked;
}
public void setOptimisticLocked(boolean optimisticLocked) {
this.optimisticLocked = optimisticLocked;
}
public boolean isOptional() {
return optional || isNullable();
}
public void setOptional(boolean optional) {
this.optional = optional;
}
public PersistentClass getPersistentClass() {
return persistentClass;
}
public void setPersistentClass(PersistentClass persistentClass) {
this.persistentClass = persistentClass;
}
public boolean isSelectable() {
return selectable;
}
public void setSelectable(boolean selectable) {
this.selectable = selectable;
}
public String getNodeName() {
return nodeName;
}
public void setNodeName(String nodeName) {
this.nodeName = nodeName;
}
public String getAccessorPropertyName( EntityMode mode ) {
if ( mode == EntityMode.DOM4J ) {
return nodeName;
}
else {
return getName();
}
}
// todo : remove
public Getter getGetter(Class clazz) throws PropertyNotFoundException, MappingException {
return getPropertyAccessor(clazz).getGetter(clazz, name);
}
// todo : remove
public Setter getSetter(Class clazz) throws PropertyNotFoundException, MappingException {
return getPropertyAccessor(clazz).getSetter(clazz, name);
}
// todo : remove
public PropertyAccessor getPropertyAccessor(Class clazz) throws MappingException {
return PropertyAccessorFactory.getPropertyAccessor( clazz, getPropertyAccessorName() );
}
public boolean isNaturalIdentifier() {
return naturalIdentifier;
}
public void setNaturalIdentifier(boolean naturalIdentifier) {
this.naturalIdentifier = naturalIdentifier;
}
}
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