public ValueExpressionEvaluator(ValueExpr expr, SQLBuilder parent, ValueType optype) {
this.parent = parent;
optypes.push(optype);
if (log.isTraceEnabled()) {
long start = System.currentTimeMillis();
expr.visit(this);
log.trace("expression evaluated in {} ms", (System.currentTimeMillis() - start));
} else {
expr.visit(this);
}
}
@Override
public void meet(BNodeGenerator gen) throws RuntimeException {
if (gen.getNodeIdExpr() != null) {
// get value of argument and express it as string
optypes.push(ValueType.STRING);
gen.getNodeIdExpr().visit(this);
optypes.pop();
} else {
builder
.append("'")
.append(
Long.toHexString(System.currentTimeMillis())
+ Integer.toHexString(anonIdGenerator.nextInt(1000)))
.append("'");
}
}