Examples with ExprConstraintDescr org.drools.drl.ast.descr.ExprConstraintDescr used on opensource projects

Example 66 with ExprConstraintDescr

use of org.drools.drl.ast.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testConstraintAndConnective.

@Test
public void testConstraintAndConnective() throws Exception {
    final String text = "rule X when Person( age < 42 && location==\"atlanta\") then end";
    PatternDescr pattern = (PatternDescr) ((RuleDescr) parse("rule", text)).getLhs().getDescrs().get(0);
    assertEquals(1, pattern.getDescrs().size());
    ExprConstraintDescr fcd = (ExprConstraintDescr) pattern.getDescrs().get(0);
    assertEquals("age < 42 && location==\"atlanta\"", fcd.getExpression());
}

Example 67 with ExprConstraintDescr

use of org.drools.drl.ast.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testPositionalConstraintsOnly.

@Test
public void testPositionalConstraintsOnly() throws Exception {
    final String text = "rule X when Person( \"Mark\", 42; ) then end";
    PatternDescr pattern = (PatternDescr) ((RuleDescr) parse("rule", text)).getLhs().getDescrs().get(0);
    assertEquals(2, 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());
}

Example 68 with ExprConstraintDescr

use of org.drools.drl.ast.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 69 with ExprConstraintDescr

use of org.drools.drl.ast.descr.ExprConstraintDescr in project drools by kiegroup.

the class RuleParserTest method testConstraintOrConnective.

@Test
public void testConstraintOrConnective() throws Exception {
    final String text = "rule X when Person( age < 42 || location==\"atlanta\") then end";
    PatternDescr pattern = (PatternDescr) ((RuleDescr) parse("rule", text)).getLhs().getDescrs().get(0);
    assertEquals(1, pattern.getDescrs().size());
    ExprConstraintDescr fcd = (ExprConstraintDescr) pattern.getDescrs().get(0);
    assertEquals("age < 42 || location==\"atlanta\"", fcd.getExpression());
}

Example 70 with ExprConstraintDescr

use of org.drools.drl.ast.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());
}