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;
}
}
private void tryInvalidParameter(Object[] parameters) throws Exception {
try {
factory.setViewParameters(viewFactoryContext, TestViewSupport.toExprListMD(parameters));
factory.attach(
SupportEventTypeFactory.createBeanType(SupportMarketDataBean.class),
SupportStatementContextFactory.makeContext(),
null,
null);
fail();
} catch (ViewParameterException ex) {
// expected
}
}
private void tryParameter(Object[] parameters, String fieldNameX, String fieldNameY)
throws Exception {
factory.setViewParameters(viewFactoryContext, TestViewSupport.toExprListMD(parameters));
factory.attach(
SupportEventTypeFactory.createBeanType(SupportMarketDataBean.class),
SupportStatementContextFactory.makeContext(),
null,
null);
RegressionLinestView view =
(RegressionLinestView)
factory.makeView(SupportStatementContextFactory.makeAgentInstanceViewFactoryContext());
assertEquals(fieldNameX, view.getExpressionX().toExpressionString());
assertEquals(fieldNameY, view.getExpressionY().toExpressionString());
}
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)));
}
