public void testAttaches() throws Exception {
// Should attach to anything as long as the fields exists
EventType parentType = SupportEventTypeFactory.createBeanType(SupportMarketDataBean.class);
factory.setViewParameters(
viewFactoryContext,
Arrays.asList(
new ExprNode[] {
SupportExprNodeFactory.makeIdentNodeMD("volume"),
SupportExprNodeFactory.makeIdentNodeMD("price")
}));
factory.attach(parentType, SupportStatementContextFactory.makeContext(), null, null);
assertEquals(
Double.class,
factory.getEventType().getPropertyType(ViewFieldEnum.REGRESSION__SLOPE.getName()));
try {
factory.setViewParameters(
viewFactoryContext, TestViewSupport.toExprListMD(new Object[] {"symbol", "symbol"}));
factory.attach(parentType, SupportStatementContextFactory.makeContext(), null, null);
fail();
} catch (ViewParameterException ex) {
// expected;
}
}
public static List<ExprNode> toExprListMD(Object[] constants) throws Exception {
List<ExprNode> expr = new ArrayList<ExprNode>();
for (int i = 0; i < constants.length; i++) {
if (constants[i] instanceof String) {
expr.add(SupportExprNodeFactory.makeIdentNodeMD(constants[i].toString()));
} else {
expr.add(new ExprConstantNodeImpl(constants[i]));
}
}
return expr;
}
public void testCanReuse() throws Exception {
factory.setViewParameters(
viewFactoryContext, TestViewSupport.toExprListMD(new Object[] {"price", "volume"}));
factory.attach(
SupportEventTypeFactory.createBeanType(SupportMarketDataBean.class),
SupportStatementContextFactory.makeContext(),
null,
null);
assertFalse(factory.canReuse(new FirstElementView()));
EventType type =
RegressionLinestView.createEventType(SupportStatementContextFactory.makeContext(), null, 1);
assertFalse(
factory.canReuse(
new RegressionLinestView(
SupportStatementContextFactory.makeAgentInstanceContext(),
SupportExprNodeFactory.makeIdentNodeMD("price"),
SupportExprNodeFactory.makeIdentNodeMD("price"),
type,
null)));
assertFalse(
factory.canReuse(
new RegressionLinestView(
SupportStatementContextFactory.makeAgentInstanceContext(),
SupportExprNodeFactory.makeIdentNodeMD("volume"),
SupportExprNodeFactory.makeIdentNodeMD("price"),
type,
null)));
assertTrue(
factory.canReuse(
new RegressionLinestView(
SupportStatementContextFactory.makeAgentInstanceContext(),
SupportExprNodeFactory.makeIdentNodeMD("price"),
SupportExprNodeFactory.makeIdentNodeMD("volume"),
type,
null)));
}
