How to use

setExpression

method

in

org.drools.workbench.models.datamodel.rule.FromAccumulateCompositeFactPattern

private FromAccumulateCompositeFactPattern visitFromAccumulateCompositeFactPattern(FromAccumulateCompositeFactPattern pattern) {
  FromAccumulateCompositeFactPattern clone = new FromAccumulateCompositeFactPattern();
  clone.setActionCode(pattern.getActionCode());
  clone.setExpression((ExpressionFormLine) visit(pattern.getExpression()));
  clone.setFactPattern((FactPattern) visit(pattern.getFactPattern()));
  clone.setFunction(pattern.getFunction());
  clone.setInitCode(pattern.getInitCode());
  clone.setResultCode(pattern.getResultCode());
  clone.setReverseCode(pattern.getReverseCode());
  clone.setSourcePattern((IPattern) visit(pattern.getSourcePattern()));
  return clone;
}

private FromAccumulateCompositeFactPattern visitFromAccumulateCompositeFactPattern(FromAccumulateCompositeFactPattern pattern) {
  FromAccumulateCompositeFactPattern clone = new FromAccumulateCompositeFactPattern();
  clone.setActionCode(pattern.getActionCode());
  clone.setExpression((ExpressionFormLine) visit(pattern.getExpression()));
  clone.setFactPattern((FactPattern) visit(pattern.getFactPattern()));
  clone.setFunction(pattern.getFunction());
  clone.setInitCode(pattern.getInitCode());
  clone.setResultCode(pattern.getResultCode());
  clone.setReverseCode(pattern.getReverseCode());
  clone.setSourcePattern((IPattern) visit(pattern.getSourcePattern()));
  return clone;
}

private static FromAccumulateCompositeFactPattern buildFromAccumulateCompositeFactPattern() {
  FromAccumulateCompositeFactPattern facc = new FromAccumulateCompositeFactPattern();
  facc.setActionCode( "action code; " );
  facc.setExpression( buildExpressionFormLine() );
  facc.setFactPattern( buildFactPattern() );
  facc.setFunction( "function;" );
  facc.setInitCode( "setPlugin code;" );
  facc.setResultCode( "result code;" );
  facc.setReverseCode( "reverse code;" );
  facc.setSourcePattern( buildExpressionFormLine() );
  return facc;
}

@Test
public void testFromAccumulateCompositePattern() throws Exception {
  FactPattern pattern1 = new FactPattern("Person");
  SingleFieldConstraint constraint1 = new SingleFieldConstraint("name");
  constraint1.setOperator("==");
  constraint1.setValue("Toni");
  pattern1.addConstraint(constraint1);
  FactPattern pattern2 = new FactPattern("Address");
  SingleFieldConstraint constraint2 = new SingleFieldConstraint("street");
  constraint2.setOperator("!=");
  constraint2.setValue("some street");
  pattern2.addConstraint(constraint2);
  FromAccumulateCompositeFactPattern fromAccumulateCompositeFactPattern = new FromAccumulateCompositeFactPattern();
  fromAccumulateCompositeFactPattern.setSourcePattern(pattern1);
  fromAccumulateCompositeFactPattern.setFactPattern(pattern2);
  ExpressionFormLine expression = new ExpressionFormLine();
  expression.setBinding("person.addresses");
  fromAccumulateCompositeFactPattern.setExpression(expression);
  model.lhs = new IPattern[]{fromAccumulateCompositeFactPattern};
  assertTrue(validator.isValid());
}

@Test
public void testFromAccumulateCompositePattern() throws Exception {
  FactPattern pattern1 = new FactPattern("Person");
  SingleFieldConstraint constraint1 = new SingleFieldConstraint("name");
  constraint1.setOperator("==");
  constraint1.setValue("Toni");
  pattern1.addConstraint(constraint1);
  FactPattern pattern2 = new FactPattern("Address");
  SingleFieldConstraint constraint2 = new SingleFieldConstraint("street");
  constraint2.setOperator("!=");
  constraint2.setValue("some street");
  pattern2.addConstraint(constraint2);
  FromAccumulateCompositeFactPattern fromAccumulateCompositeFactPattern = new FromAccumulateCompositeFactPattern();
  fromAccumulateCompositeFactPattern.setSourcePattern(pattern1);
  fromAccumulateCompositeFactPattern.setFactPattern(pattern2);
  ExpressionFormLine expression = new ExpressionFormLine();
  expression.setBinding("person.addresses");
  fromAccumulateCompositeFactPattern.setExpression(expression);
  model.lhs = new IPattern[]{fromAccumulateCompositeFactPattern};
  assertTrue(validator.isValid());
}