/* (non-Javadoc)
* @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
*/
public Object evaluate(
InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
String method = expr.getOperation();
if (invokedValue == null) {
return null;
}
if (!(invokedValue instanceof List)) {
throw new NucleusException(
LOCALISER.msg("021011", method, invokedValue.getClass().getName()));
}
Object param = expr.getArguments().get(0);
Object paramValue = null;
if (param instanceof Literal) {
paramValue = ((Literal) param).getLiteral();
} else if (param instanceof PrimaryExpression) {
PrimaryExpression primExpr = (PrimaryExpression) param;
paramValue = eval.getValueForPrimaryExpression(primExpr);
} else if (param instanceof ParameterExpression) {
ParameterExpression paramExpr = (ParameterExpression) param;
paramValue = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
} else if (param instanceof VariableExpression) {
VariableExpression varExpr = (VariableExpression) param;
try {
paramValue = eval.getValueForVariableExpression(varExpr);
} catch (VariableNotSetException vnse) {
// Throw an exception with the possible values of elements
throw new VariableNotSetException(varExpr, ((List) invokedValue).toArray());
}
} else {
throw new NucleusException(
"Dont currently support use of get(" + param.getClass().getName() + ")");
}
int paramInt;
if (paramValue instanceof Number) {
paramInt = ((Number) paramValue).intValue();
} else {
throw new NucleusException("List.get() should take in an integer but is " + paramValue);
}
return ((List) invokedValue).get(paramInt);
}
/* (non-Javadoc)
* @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
*/
public Object evaluate(
InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
String method = expr.getOperation();
Object param1 = expr.getArguments().get(0);
int param1Value = -1;
if (param1 instanceof PrimaryExpression) {
PrimaryExpression primExpr = (PrimaryExpression) param1;
Object val = eval.getValueForPrimaryExpression(primExpr);
if (val instanceof Number) {
param1Value = ((Number) val).intValue();
} else {
throw new NucleusException(
method
+ "(num1, num2) where num1 is instanceof "
+ param1.getClass().getName()
+ " but should be integer");
}
} else if (param1 instanceof ParameterExpression) {
ParameterExpression paramExpr = (ParameterExpression) param1;
Object val = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
if (val instanceof Number) {
param1Value = ((Number) val).intValue();
} else {
throw new NucleusException(
method
+ "(num1, num2) where num1 is instanceof "
+ param1.getClass().getName()
+ " but should be integer");
}
} else if (param1 instanceof Literal) {
Object val = ((Literal) param1).getLiteral();
if (val instanceof Number) {
param1Value = ((Number) val).intValue();
} else {
throw new NucleusException(
method
+ "(num1, num2) where num1 is instanceof "
+ param1.getClass().getName()
+ " but should be integer");
}
} else {
throw new NucleusException(
method
+ "(num1, num2) where num1 is instanceof "
+ param1.getClass().getName()
+ " not supported");
}
Object param2 = expr.getArguments().get(1);
int param2Value = -1;
if (param2 instanceof PrimaryExpression) {
PrimaryExpression primExpr = (PrimaryExpression) param2;
Object val = eval.getValueForPrimaryExpression(primExpr);
if (val instanceof Number) {
param2Value = ((Number) val).intValue();
} else {
throw new NucleusException(
method
+ "(num1, num2) where num2 is instanceof "
+ param2.getClass().getName()
+ " but should be integer");
}
} else if (param2 instanceof ParameterExpression) {
ParameterExpression paramExpr = (ParameterExpression) param2;
Object val = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
if (val instanceof Number) {
param2Value = ((Number) val).intValue();
} else {
throw new NucleusException(
method
+ "(num1, num2) where num1 is instanceof "
+ param2.getClass().getName()
+ " but should be integer");
}
} else if (param2 instanceof Literal) {
Object val = ((Literal) param2).getLiteral();
if (val instanceof Number) {
param2Value = ((Number) val).intValue();
} else {
throw new NucleusException(
method
+ "(num1, num2) where num2 is instanceof "
+ param2.getClass().getName()
+ " but should be integer");
}
} else {
throw new NucleusException(
method
+ "(num1, num2) where num2 is instanceof "
+ param2.getClass().getName()
+ " not supported");
}
return Integer.valueOf(param1Value % param2Value);
}