@Override
public void meet(FunctionCall fc) throws RuntimeException {
// special optimizations for frequent cases with variables
if ((XMLSchema.DOUBLE.toString().equals(fc.getURI())
|| XMLSchema.FLOAT.toString().equals(fc.getURI()))
&& fc.getArgs().size() == 1) {
optypes.push(ValueType.DOUBLE);
fc.getArgs().get(0).visit(this);
optypes.pop();
} else if ((XMLSchema.INTEGER.toString().equals(fc.getURI())
|| XMLSchema.INT.toString().equals(fc.getURI()))
&& fc.getArgs().size() == 1) {
optypes.push(ValueType.INT);
fc.getArgs().get(0).visit(this);
optypes.pop();
} else if (XMLSchema.BOOLEAN.toString().equals(fc.getURI()) && fc.getArgs().size() == 1) {
optypes.push(ValueType.BOOL);
fc.getArgs().get(0).visit(this);
optypes.pop();
} else if (XMLSchema.DATE.toString().equals(fc.getURI()) && fc.getArgs().size() == 1) {
optypes.push(ValueType.DATE);
fc.getArgs().get(0).visit(this);
optypes.pop();
} else {
String fnUri = fc.getURI();
String[] args = new String[fc.getArgs().size()];
NativeFunction nf = functionRegistry.get(fnUri);
if (nf != null && nf.isSupported(parent.getDialect())) {
for (int i = 0; i < args.length; i++) {
args[i] =
new ValueExpressionEvaluator(fc.getArgs().get(i), parent, nf.getArgumentType(i))
.build();
}
if (optypes.peek() != nf.getReturnType()) {
builder.append(castExpression(nf.getNative(parent.getDialect(), args), optypes.peek()));
} else {
builder.append(nf.getNative(parent.getDialect(), args));
}
} else {
throw new IllegalArgumentException(
"the function " + fnUri + " is not supported by the SQL translation");
}
}
}
public String getURI() {
return XMLSchema.BOOLEAN.toString();
}