private void executeQuery(SOQLQuery q, ObjectVisitor visitor) throws SOQLException {
InstanceKlass kls = null;
if (q.className != null) {
kls = SystemDictionaryHelper.findInstanceKlass(q.className);
if (kls == null) {
throw new SOQLException(q.className + " is not found!");
}
}
StringBuffer buf = new StringBuffer();
buf.append("function result(");
if (q.identifier != null) {
buf.append(q.identifier);
}
buf.append(") { return ");
buf.append(q.selectExpr.replace('\n', ' '));
buf.append("; }");
String selectCode = buf.toString();
debugPrint(selectCode);
String whereCode = null;
if (q.whereExpr != null) {
buf = new StringBuffer();
buf.append("function filter(");
buf.append(q.identifier);
buf.append(") { return ");
buf.append(q.whereExpr.replace('\n', ' '));
buf.append("; }");
whereCode = buf.toString();
debugPrint(whereCode);
} else {
whereCode = "filter = null;";
}
beginQuery();
// compile select expression and where condition
evalString(selectCode, "", 1);
evalString(whereCode, "", 1);
// iterate thru heap, if needed
if (q.className != null) {
try {
iterateOops(kls, visitor, q.isInstanceOf);
} finally {
endQuery();
}
} else {
// simple "select <expr>" query
try {
Object select = call("result", new Object[] {});
visitor.visit(select);
} catch (Exception e) {
e.printStackTrace();
}
}
}
public String toString() {
StringBuffer buf = new StringBuffer();
buf.append("Java Heap (capacity=");
buf.append(getCapacity());
buf.append(", used=");
buf.append(getUsed());
buf.append(")");
return buf.toString();
}
/** Returns name and signature in external form for debugging purposes */
public String externalNameAndSignature() {
final StringBuffer buf = new StringBuffer();
buf.append(getMethodHolder().getName().asString());
buf.append(".");
buf.append(getName().asString());
buf.append("(");
new SignatureConverter(getSignature(), buf).iterateParameters();
buf.append(")");
return buf.toString().replace('/', '.');
}