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My enums are enclosed within another class, not external. As an
example:
public class DocumentStore extends DomainObject {
public static enum MsgType { REQUEST, CONFIRM }
The TypeHandler declaration looks like the
following:
<typeHandler javaType="com.sybase.cosmos.domain.DocumentStore$MsgType" callback="com.sybase.cosmos.dao.impl.ibatis.extentions.DocMsgTypeTypeHandlerCallback"
/>
I'm using Enums without difficulty. I've implemented
a TypeHandlerCallback to accommodate the set and get in the
following manner:
Are your enums enclosed within
another class or external? My enums are enclosed within classes and iBATIS
is looking for a type handler for the enclosing class on insert/update instead
of the enum. Using externally declared enums w/the same type handler works
fine.
Tom
Hi All,
I'm having a problem with Java 5 Enums and iBATIS
TypeHandlerCallbacks. I've read the wiki article and it doesn't help
with my particular issue. Retrieving objects is working fine but
inserting/updating them is throwing this NPE:
java.lang.NullPointerException
at
com.ibatis.sqlmap.engine.type.UnknownTypeHandler.setParameter
(UnknownTypeHandler.java:72)
at
com.ibatis.sqlmap.engine.mapping.parameter.BasicParameterMap.setParamete
r(BasicParameterMap.java:165)
at
com.ibatis.sqlmap.engine.mapping.parameter.BasicParameterMap.setParamete
rs(BasicParameterMap.java:125)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.executeUpdate
(SqlExecutor.java:76)
at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteUp
date(GeneralStatement.java:200)
at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUpdat
e(GeneralStatement.java:78)
at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.insert
(SqlMapExecutorDelegate.java:446)
at
com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.insert
(SqlMapSessionImpl.java:82)
at
org.springframework.orm.ibatis.SqlMapClientTemplate
$9.doInSqlMapClient(SqlMapClientTemplate.java:358)
at
org.springframework.orm.ibatis.SqlMapClientTemplate.execute
(SqlMapClientTemplate.java:188)
at
org.springframework.orm.ibatis.SqlMapClientTemplate.insert
(SqlMapClientTemplate.java:356)
...
Here's my basic setup:
public interface Tenant {
public enum Type { FOO, BAR }
public
Type getType();
public void setType(Type type);
...
}
public
class TenantImpl implements Tenant {
private Type type;
public Type
getType() { return type; }
public void setType(Type type) { this.type =
type; }
...
}
My type handler for Tenant$Type looks a lot like
the examples in the
wiki article. The types are mapped in my SqlMapConfig:
callback="com.utilivisor.dao.ibatis.TenantTypeEnumTypeHandler"/>
I'm messing around with UnknownTypeHandler.setParameter() and am very
confused. I checked the incoming value of parameter.getClass() and
it
is correct, i.e., foo.bar.Tenant$Type. usingJavaPre5 is set
(Which is
confusing by itself because I am using Java5) so
getBaseClass() is called
and the new searchClass is foo.bar.Tenant.
I do not have or want a type
handler for foo.bar.Tenant. Can anyone
help?
Tom
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- RE: Problem w/enum and TypeHandlerCallback Christopher . Mathrusse
-
