/*
* org.postgresql.pljava.type.Tuple type.
*/
jobject Tuple_create(HeapTuple ht)
{
jobject jht = 0;
if(ht != 0)
{
MemoryContext curr = MemoryContextSwitchTo(JavaMemoryContext);
jht = Tuple_internalCreate(ht, true);
MemoryContextSwitchTo(curr);
}
return jht;
}
jobjectArray Tuple_createArray(HeapTuple* vals, jint size, bool mustCopy)
{
jobjectArray tuples = JNI_newObjectArray(size, s_Tuple_class, 0);
while(--size >= 0)
{
jobject heapTuple = Tuple_internalCreate(vals[size], mustCopy);
JNI_setObjectArrayElement(tuples, size, heapTuple);
JNI_deleteLocalRef(heapTuple);
}
return tuples;
}
/*
* Class: org_postgresql_pljava_internal_TupleDesc
* Method: _formTuple
* Signature: (J[Ljava/lang/Object;)Lorg/postgresql/pljava/internal/Tuple;
*/
JNIEXPORT jobject JNICALL
Java_org_postgresql_pljava_internal_TupleDesc__1formTuple(JNIEnv* env, jclass cls, jlong _this, jobjectArray jvalues)
{
jobject result = 0;
BEGIN_NATIVE
Ptr2Long p2l;
p2l.longVal = _this;
PG_TRY();
{
jint idx;
HeapTuple tuple;
MemoryContext curr;
TupleDesc self = (TupleDesc)p2l.ptrVal;
int count = self->natts;
Datum* values = (Datum*)palloc(count * sizeof(Datum));
char* nulls = palloc(count);
jobject typeMap = Invocation_getTypeMap();
memset(values, 0, count * sizeof(Datum));
memset(nulls, 'n', count); /* all values null initially */
for(idx = 0; idx < count; ++idx)
{
jobject value = JNI_getObjectArrayElement(jvalues, idx);
if(value != 0)
{
Type type = Type_fromOid(SPI_gettypeid(self, idx + 1), typeMap);
values[idx] = Type_coerceObject(type, value);
nulls[idx] = ' ';
}
}
curr = MemoryContextSwitchTo(JavaMemoryContext);
tuple = heap_formtuple(self, values, nulls);
result = Tuple_internalCreate(tuple, false);
MemoryContextSwitchTo(curr);
pfree(values);
pfree(nulls);
}
PG_CATCH();
{
Exception_throw_ERROR("heap_formtuple");
}
PG_END_TRY();
END_NATIVE
return result;
}