Examples with ExprConstraintDescr org.drools.compiler.lang.descr.ExprConstraintDescr used on opensource projects

Example 51 with ExprConstraintDescr

use of org.drools.compiler.lang.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testPositionalsAndNamedConstraints.

@Test
public void testPositionalsAndNamedConstraints() throws Exception {
    final String text = "rule X when Person( \"Mark\", 42; location == \"atlanta\" ) then end";
    PatternDescr pattern = (PatternDescr) ((RuleDescr) parse("rule", text)).getLhs().getDescrs().get(0);
    assertEquals(3, pattern.getDescrs().size());
    ExprConstraintDescr fcd = (ExprConstraintDescr) pattern.getDescrs().get(0);
    assertEquals("\"Mark\"", fcd.getExpression());
    assertEquals(0, fcd.getPosition());
    assertEquals(ExprConstraintDescr.Type.POSITIONAL, fcd.getType());
    fcd = (ExprConstraintDescr) pattern.getDescrs().get(1);
    assertEquals("42", fcd.getExpression());
    assertEquals(1, fcd.getPosition());
    assertEquals(ExprConstraintDescr.Type.POSITIONAL, fcd.getType());
    fcd = (ExprConstraintDescr) pattern.getDescrs().get(2);
    assertEquals("location == \"atlanta\"", fcd.getExpression());
    assertEquals(2, fcd.getPosition());
    assertEquals(ExprConstraintDescr.Type.NAMED, fcd.getType());
}

Example 52 with ExprConstraintDescr

use of org.drools.compiler.lang.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testNotNode.

@Test
public void testNotNode() throws Exception {
    final RuleDescr rule = (RuleDescr) parseResource("rule", "rule_not.drl");
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    assertNotNull(rule);
    assertEquals("simple_rule", rule.getName());
    final AndDescr lhs = rule.getLhs();
    assertEquals(1, lhs.getDescrs().size());
    final NotDescr not = (NotDescr) lhs.getDescrs().get(0);
    assertEquals(1, not.getDescrs().size());
    final PatternDescr pattern = (PatternDescr) not.getDescrs().get(0);
    assertEquals("Cheese", pattern.getObjectType());
    assertEquals(1, pattern.getConstraint().getDescrs().size());
    final AndDescr and = (AndDescr) pattern.getConstraint();
    final ExprConstraintDescr fld = (ExprConstraintDescr) and.getDescrs().get(0);
    assertEquals("type == \"stilton\"", fld.getExpression());
}

Example 53 with ExprConstraintDescr

use of org.drools.compiler.lang.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testWithRetval.

@Test
public void testWithRetval() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "with_retval.drl");
    assertEquals(1, pkg.getRules().size());
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals(1, rule.getLhs().getDescrs().size());
    final PatternDescr col = (PatternDescr) rule.getLhs().getDescrs().get(0);
    assertEquals(1, col.getConstraint().getDescrs().size());
    assertEquals("Foo", col.getObjectType());
    final ExprConstraintDescr fld = (ExprConstraintDescr) col.getConstraint().getDescrs().get(0);
    assertEquals("name== (a + b)", fld.getExpression());
}

Example 54 with ExprConstraintDescr

use of org.drools.compiler.lang.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testRuleParseLhsWithStringQuotes2.

@Test
public void testRuleParseLhsWithStringQuotes2() throws Exception {
    final String text = "rule X when Cheese( $x: type, type == \"s\\tti\\\"lto\\nn\" ) then end\n";
    RuleDescr rule = (RuleDescr) parse("rule", text);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    assertNotNull(rule);
    AndDescr lhs = rule.getLhs();
    ExprConstraintDescr constr = (ExprConstraintDescr) ((PatternDescr) lhs.getDescrs().get(0)).getDescrs().get(1);
    assertEquals("type == \"s\\tti\\\"lto\\nn\"", constr.getText());
}

Example 55 with ExprConstraintDescr

use of org.drools.compiler.lang.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testPredicate2.

@Test
public void testPredicate2() throws Exception {
    // predicates are also prefixed by the eval keyword
    final RuleDescr rule = (RuleDescr) parse("rule", "rule X when Foo(eval( $var.equals(\"xyz\") )) then end");
    final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get(0);
    final List<?> constraints = pattern.getConstraint().getDescrs();
    assertEquals(1, constraints.size());
    final ExprConstraintDescr predicate = (ExprConstraintDescr) constraints.get(0);
    assertEquals("eval( $var.equals(\"xyz\") )", predicate.getExpression());
}