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java.lang.Objectorg.apache.ojb.broker.accesslayer.PkEnumeration
this class can be used to create enumerations of PrimaryKey objects. This is interesting for EJB finder methods in BMP entity beans which must return such enumerations.
Field Summary | |
protected PersistenceBroker |
broker
|
protected ClassDescriptor |
classDescriptor
descriptor for the class of which items are to be found |
protected java.lang.reflect.Constructor |
constructor
the Constructor that is needed to build the PrimaryKey Objects |
protected boolean |
hasCalledCheck
|
protected boolean |
hasNext
|
protected ResultSetAndStatement |
resultSetAndStatment
The underlying jdbc resultset produced by select statement |
(package private) static long |
serialVersionUID
|
Constructor Summary | |
PkEnumeration(Query query,
ClassDescriptor cld,
java.lang.Class primaryKeyClass,
PersistenceBroker broker)
PkEnumeration constructor. |
Method Summary | |
protected void |
finalize()
protection just in case someone leaks. |
boolean |
hasMoreElements()
Tests if this enumeration contains more elements. |
java.lang.Object |
nextElement()
Returns the next element of this enumeration if this enumeration object has at least one more element to provide. |
Methods inherited from class java.lang.Object |
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
static final long serialVersionUID
protected boolean hasCalledCheck
protected boolean hasNext
protected PersistenceBroker broker
protected ResultSetAndStatement resultSetAndStatment
protected ClassDescriptor classDescriptor
protected java.lang.reflect.Constructor constructor
Constructor Detail |
public PkEnumeration(Query query, ClassDescriptor cld, java.lang.Class primaryKeyClass, PersistenceBroker broker)
query
- the SELECT statement gerating the underlying resultsetcld
- classDescriptor of the target entity class (say Article)primaryKeyClass
- the entity classes PrimaryKey class (say ArticleKey).
this key-class MUST have a constructor with one argument of type org.apache.ojb.broker.Identity !Method Detail |
public boolean hasMoreElements()
hasMoreElements
in interface java.util.Enumeration
true
if and only if this enumeration object
contains at least one more element to provide;
false
otherwise.public java.lang.Object nextElement()
nextElement
in interface java.util.Enumeration
java.util.NoSuchElementException
- if no more elements exist.protected void finalize()
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