int evalNodeSet_ce (cachedExpr *ce,VTDNav *vn){
int i=-1;
if (ce->cached){
if (ce->count<ce->ens->size){
i=intAt(ce->ens,ce->count);
recoverNode(vn,i);
ce->count++;
return i;
}else
return -1;
}else{
ce->cached = TRUE;
if (ce->ens==NULL){
ce->ens = createFastIntBuffer2(8);//page size 64
}
//record node set
while((i=ce->e->evalNodeSet(ce->e,vn))!=-1){
appendInt(ce->ens,i);
}
ce->e->reset(ce->e,vn);
if(ce->ens->size>0){
i=intAt(ce->ens,ce->count);//count should be zero
recoverNode(vn,i);
vn->count++;
return i;
}else
return -1;
}
}
static Boolean compNodeSetNodeSet(binaryExpr *be, expr* left, expr* right, VTDNav *vn, opType op){
exception e;
int i,i1,k,s1,stackSize;
Try {
if (be->fib1 == NULL)
be->fib1 = createFastIntBuffer2(BUF_SZ_EXP);
push2(vn);
stackSize = vn->contextBuf2->size;
while ((i = be->left->evalNodeSet(be->left,vn)) != -1) {
i1 = getStringVal(vn,i);
if (i1 != -1)
appendInt(be->fib1,i1);
}
be->left->reset(be->left,vn);
vn->contextBuf2->size = stackSize;
pop2(vn);
push2(vn);
stackSize = vn->contextBuf2->size;
while ((i = be->right->evalNodeSet(be->right,vn)) != -1) {
i1 = getStringVal(vn,i);
if (i1 != -1){
s1 = be->fib1->size;
for (k = 0; k < s1; k++) {
Boolean b = compareVV(be,intAt(be->fib1,k),vn,i1,op);
if (b){
clearFastIntBuffer(be->fib1);
vn->contextBuf2->size = stackSize;
pop2(vn);
be->right->reset(be->right,vn);
return TRUE;
}
}
}
}
vn->contextBuf2->size = stackSize;
pop2(vn);
be->right->reset(be->right,vn);
clearFastIntBuffer(be->fib1);
return FALSE;
} Catch (e) {
if (e.et == out_of_mem){
Throw e;
}
if(be->fib1!=NULL)
clearFastIntBuffer(be->fib1);
e.et = other_exception;
e.msg = "undefined run time behavior in computerEQNE";
Throw e;
}
return FALSE;
}
static bool intAt(char* name, int* value) { return intAt(name, strlen(name), value); }
int iterateNodeRecorder(NodeRecorder *nr){
int j, i;
Boolean b;
if (nr->count < nr->fib->size)
{
i = intAt(nr->fib,nr->count);
b = (i >= 0);
if (b == FALSE)
{
i = i & 0x7fffffff;
}
switch (i)
{
case 0xff:
nr->vn->context[0] = -1;
nr->vn->atTerminal = FALSE;
nr->count++;
break;
case 0:
nr->vn->context[0] = 0;
if (b == FALSE)
{
nr->vn->atTerminal = TRUE;
nr->vn->LN = intAt(nr->fib,nr->count + 1);
nr->count += 2;
}
else
{
nr->vn->atTerminal = FALSE;
nr->count++;
}
break;
case 1:
nr->vn->context[0] = 1;
nr->vn->context[1] = intAt(nr->fib,nr->count + 1);
nr->vn->l1index = intAt(nr->fib,nr->count + 2);
if (b == FALSE)
{
nr->vn->atTerminal = TRUE;
nr->vn->LN = intAt(nr->fib,nr->count + 3);
nr->count += 4;
}
else
{
nr->vn->atTerminal = FALSE;
nr->count += 3;
}
break;
case 2:
nr->vn->context[0] = 2;
nr->vn->context[1] = intAt(nr->fib,nr->count + 1);
nr->vn->context[2] = intAt(nr->fib,nr->count + 2);
nr->vn->l1index = intAt(nr->fib,nr->count + 3);
nr->vn->l2lower = intAt(nr->fib,nr->count + 4);
nr->vn->l2upper = intAt(nr->fib,nr->count + 5);
nr->vn->l2index = intAt(nr->fib,nr->count + 6);
if (b == FALSE)
{
nr->vn->atTerminal = TRUE;
nr->vn->LN = intAt(nr->fib,nr->count + 7);
nr->count += 8;
}
else
{
nr->vn->atTerminal = FALSE;
nr->count += 7;
}
break;
case 3:
nr->vn->context[0] = 3;
nr->vn->context[1] = intAt(nr->fib,nr->count + 1);
nr->vn->context[2] = intAt(nr->fib,nr->count + 2);
nr->vn->context[3] = intAt(nr->fib,nr->count + 3);
nr->vn->l1index = intAt(nr->fib,nr->count + 4);
nr->vn->l2lower = intAt(nr->fib,nr->count + 5);
nr->vn->l2upper = intAt(nr->fib,nr->count + 6);
nr->vn->l2index = intAt(nr->fib,nr->count + 7);
nr->vn->l3lower = intAt(nr->fib,nr->count + 8);
nr->vn->l3upper = intAt(nr->fib,nr->count + 9);
nr->vn->l3index = intAt(nr->fib,nr->count + 10);
if (b == FALSE)
{
nr->vn->atTerminal = TRUE;
nr->vn->LN = intAt(nr->fib,nr->count + 11);
nr->count += 12;
}
else
{
nr->vn->atTerminal = FALSE;
nr->count += 11;
}
break;
default:
nr->vn->context[0] = i;
for (j = 1; j < i; j++)
{
nr->vn->context[j] = intAt(nr->fib,nr->count + j);
}
nr->vn->l1index = intAt(nr->fib,nr->count + i);
nr->vn->l2lower = intAt(nr->fib,nr->count + i + 1);
nr->vn->l2upper = intAt(nr->fib,nr->count + i + 2);
nr->vn->l2index = intAt(nr->fib,nr->count + i + 3);
nr->vn->l3lower = intAt(nr->fib,nr->count + i + 4);
nr->vn->l3upper = intAt(nr->fib,nr->count + i + 5);
nr->vn->l3index = intAt(nr->fib,nr->count + i + 6);
if (b == FALSE)
{
nr->vn->atTerminal = TRUE;
nr->vn->LN = intAt(nr->fib,nr->count + 11);
nr->count += i + 8;
}
else
{
nr->vn->atTerminal = FALSE;
nr->count += i + 7;
}
break;
}
nr->position++;
return getCurrentIndex(nr->vn);
}
return -1;
}
