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Added provisions for auxiliary enhancers to omit specific methods to be enhanced 

git-svn-id: https://svn.apache.org/repos/asf/incubator/openjpa/trunk@428886 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Pinaki Poddar 2006-08-04 21:14:48 +00:00
parent f70f99e638
commit 8c2c40dfe1
1 changed files with 42 additions and 17 deletions
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59
openjpa-kernel/src/main/java/org/apache/openjpa/enhance/PCEnhancer.java
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@ -536,14 +536,14 @@ public class PCEnhancer {
// look through all methods; this is done before any methods are added
// so we don't need to worry about excluding synthetic methods.
BCMethod[] methods = _pc.getDeclaredMethods();
Set nonEnhancedMethods = getUnenhancedMethods();
Code code;
for (int i = 0; i < methods.length; i++) {
code = methods[i].getCode(false);
// don't modify some of the InstanceCallbacks methods
// don't modify the methods specified by the auxiliary enhancers
if (code != null
&& !(PRE + "PostLoad").equals(methods[i].getName())
&& !(PRE + "PreClear").equals(methods[i].getName())) {
&& !nonEnhancedMethods.contains(methods[i].getName())) {
replaceAndValidateFieldAccess(code, get, true, stat);
replaceAndValidateFieldAccess(code, put, false, stat);
}
@ -2607,24 +2607,48 @@ public class PCEnhancer {
return bc;
}
/**
* Gets the auxiliary enhancers registered as {@link Services services}.
* Multi-call safe -- the first call locates the auxiliary enhancers,
* subsequent calls merely returns the existing set.
*
* @return array of auxiliary enhancers. empty array if none is registered.
*/
public AuxiliaryEnhancer[] getAuxiliaryEnhancers() {
if (_auxEnhancers == null) {
try {
Class[] classes = Services
.getImplementorClasses(AuxiliaryEnhancer.class);
_auxEnhancers = new AuxiliaryEnhancer[classes.length];
for (int i = 0; i < _auxEnhancers.length; i++)
_auxEnhancers[i] = (AuxiliaryEnhancer) classes[i]
.newInstance();
} catch (Throwable t) {
throw new GeneralException(t);
}
}
return _auxEnhancers;
}
/**
* Allow any registered auxiliary code generators to run.
*/
private void runAuxiliaryEnhancers() {
if (_auxEnhancers == null) {
try {
Class[] classes = Services
.getImplementorClasses(AuxiliaryEnhancer.class);
_auxEnhancers = new AuxiliaryEnhancer[classes.length];
for (int i = 0; i < _auxEnhancers.length; i++)
_auxEnhancers[i] = (AuxiliaryEnhancer) classes[i]
.newInstance();
} catch (Throwable t) {
throw new GeneralException(t);
}
}
for (int i = 0; i < _auxEnhancers.length; i++)
_auxEnhancers[i].run(_pc, _meta);
AuxiliaryEnhancer[] auxEnhancers = getAuxiliaryEnhancers();
for (int i = 0; i < auxEnhancers.length; i++)
auxEnhancers[i].run(_pc, _meta);
}
private Set getUnenhancedMethods() {
Set result = new HashSet();
AuxiliaryEnhancer[] auxEnhancers = getAuxiliaryEnhancers();
for (int i = 0; i < auxEnhancers.length; i++) {
Set contrib = auxEnhancers[i].getUnenhancedMethods();
if (contrib != null || !contrib.isEmpty()) {
result.addAll(contrib);
}
}
return result;
}
/**
@ -3485,5 +3509,6 @@ public class PCEnhancer {
public static interface AuxiliaryEnhancer
{
public void run (BCClass bc, ClassMetaData meta);
public Set getUnenhancedMethods();
}
}