File	Doc	Category	Size	Date	Package
ClassType.java	API Doc	Glassfish v2 API	8051	Fri May 04 22:35:08 BST 2007	com.sun.jdo.spi.persistence.support.sqlstore.query.util.type

ClassType

• java.lang.Object
  • Type

Fields Summary
protected TypeTable	typetab The associated type table.
protected Map	fieldInfos
protected com.sun.jdo.api.persistence.model.jdo.PersistenceClassElement	pce

Constructors Summary
public ClassType(String name, Class clazz, int enumType, TypeTable typetab) super(name, clazz, enumType); this.typetab = typetab; this.fieldInfos = new HashMap(); // get JDO model element if available ClassLoader classLoader = clazz.getClassLoader(); if (classLoader != null) { try { this.pce = typetab.model.getPersistenceClass(name, classLoader); } catch (IllegalArgumentException ex) { // IllegalArgumentException indicates class loader problem throw new JDOFatalUserException(ex.getMessage()); } }
public ClassType(String name, Class clazz, TypeTable typetab) this(name, clazz, FieldTypeEnumeration.NOT_ENUMERATED, typetab);

Methods Summary
public FieldInfo	getFieldInfo(java.lang.String fieldName) Return FieldInfo object for the field with the specified name. synchronized(fieldInfos) { FieldInfo fieldInfo = (FieldInfo)fieldInfos.get(fieldName); if (fieldInfo == null) { // NOTE, no inheritance! final Class cl = clazz; Field field = (Field) AccessController.doPrivileged(new PrivilegedAction() { public Object run () { try { return cl.getDeclaredField(fieldName); } catch (NoSuchFieldException ex) { return null; // do nothing, just return null } } }); if (field != null) { fieldInfo = new FieldInfo(field, this); fieldInfos.put(fieldName, fieldInfo); } } return fieldInfo; }
public FieldInfo[]	getFieldInfos() Returns an array of fieldInfos for all declared fields. // Initialize the fieldInfos map with the field declared for this class. // NOTE, this code does not work for inheritance! //Field[] fields = clazz.getDeclaredFields(); final Class cl = clazz; Field[] fields = (Field[]) AccessController.doPrivileged(new PrivilegedAction() { public Object run () { return cl.getDeclaredFields(); } }); synchronized(fieldInfos) { for (int i = 0; i < fields.length; i++) { String fieldName = fields[i].getName(); FieldInfo fieldInfo = (FieldInfo)fieldInfos.get(fieldName); if (fieldInfo == null) fieldInfos.put(fieldName, new FieldInfo(fields[i], this)); } } return (FieldInfo[])fieldInfos.values().toArray(new FieldInfo[0]);
public java.util.List	getKeyFieldNames() Return the list of key field names if (pce != null) { PersistenceFieldElement[] persistentFields = pce.getFields(); List names = new ArrayList(); for (int i = 0; i < persistentFields.length; i++) { if (persistentFields[i].isKey()) names.add(persistentFields[i].getName()); } return names; } return null;
public boolean	isCompatibleWith(Type type) Checks the compatibility of this with the specified type. A ClassType object is compatible to errorType, to the type of null (NullType), to itself and to a super class (direct or indirect). param type type for compatibility check return true if this is compatible with type; false otherwise. see Type#isCompatibleWith(Type) boolean result = false; if (type instanceof ClassType) { result = ((ClassType)type).clazz.isAssignableFrom(clazz); } return result;
public boolean	isOrderable() Returns whether this represents a type with an defined order. return true if an order is defined for this; false otherwise. Type comparable = typetab.checkType("java.lang.Comparable"); //NOI18N return isCompatibleWith(comparable);
public boolean	isPersistenceCapable() Returns true if this is defined as persistence capable class. return true if this is a persistence capable class; false otherwise. return (pce != null);