Package org.datanucleus.enhancer.methods
Class CopyKeyFieldsFromObjectId2
java.lang.Object
org.datanucleus.enhancer.ClassMethod
org.datanucleus.enhancer.methods.CopyKeyFieldsFromObjectId2
Method to generate the method "dnCopyKeyFieldsFromObjectId" using ASM.
For datastore/nondurable identity
protected void dnCopyKeyFieldsFromObjectId(Object object) { }and for SingleFieldIdentity
protected void dnCopyKeyFieldsFromObjectId(Object oid) { if (!(oid instanceof YYYIdentity)) throw new ClassCastException("key class is not YYYIdentity or null"); YYYIdentity o = (YYYIdentity) oid; id = o.getKey(); }and for user-supplied app identity
protected void dnCopyKeyFieldsFromObjectId(Object oid) { if (!(oid instanceof UserPrimaryKey)) throw new ClassCastException("key class is not mydomain.UserPrimarKey or null"); UserPrimaryKey o = (UserPrimaryKey) oid; try { zzz1 = o.zzz1; zzz2 = o.zzz2; } catch(Exception e) {} }and for CompoundIdentity
protected void dnCopyKeyFieldsFromObjectId(Object oid) { if (!(oid instanceof UserPrimaryKey)) throw new ClassCastException("key class is not mydomain.UserPrimarKey or null"); UserPrimaryKey o = (UserPrimaryKey) oid; try { zzz1 = o.zzz1; zzz2 = (ZZZ) this.dnGetPersistenceManager().getObjectById(o.zzz, false); } catch (Exception e) {} }(the try-catch is for cases where we set the fields with reflection and it can throw an exception). There are some differences for fields .v. properties and also if fields in the PK are private.
- Version:
- $Revision: 1.21 $
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Field Summary
Fields inherited from class org.datanucleus.enhancer.ClassMethod
access, argNames, argTypes, enhancer, exceptions, methodName, returnType, visitor
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Constructor Summary
ConstructorsConstructorDescriptionCopyKeyFieldsFromObjectId2
(ClassEnhancer enhancer, String name, int access, Object returnType, Object[] argTypes, String[] argNames) Constructor. -
Method Summary
Modifier and TypeMethodDescriptionvoid
execute()
Method to add the contents of the class method.static CopyKeyFieldsFromObjectId2
getInstance
(ClassEnhancer enhancer) Methods inherited from class org.datanucleus.enhancer.ClassMethod
close, equals, getAccess, getClassEnhancer, getDescriptor, getMethodAdditionMessage, getName, getNamer, hashCode, initialise, initialise
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Constructor Details
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CopyKeyFieldsFromObjectId2
public CopyKeyFieldsFromObjectId2(ClassEnhancer enhancer, String name, int access, Object returnType, Object[] argTypes, String[] argNames) Constructor.- Parameters:
enhancer
- ClassEnhancername
- Name of methodaccess
- Access typereturnType
- Return typeargTypes
- Argument typesargNames
- Argument names
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Method Details
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getInstance
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execute
public void execute()Method to add the contents of the class method.- Specified by:
execute
in classClassMethod
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