Examples with ASTConcat org.apache.cayenne.exp.parser.ASTConcat used on opensource projects

Example 1 with ASTConcat

use of org.apache.cayenne.exp.parser.ASTConcat in project cayenne by apache.

the class FunctionExpressionFactoryTest method concatExp.

@Test
public void concatExp() throws Exception {
    Expression exp1 = FunctionExpressionFactory.concatExp(Artist.ARTIST_NAME.path(), new ASTScalar("abc"), Artist.DATE_OF_BIRTH.path());
    assertTrue(exp1 instanceof ASTConcat);
    assertEquals(3, exp1.getOperandCount());
    assertEquals(Artist.ARTIST_NAME.path(), exp1.getOperand(0));
    assertEquals("abc", exp1.getOperand(1));
    assertEquals(Artist.DATE_OF_BIRTH.path(), exp1.getOperand(2));
    Expression exp2 = FunctionExpressionFactory.concatExp(Artist.ARTIST_NAME.getName(), Artist.DATE_OF_BIRTH.getName(), Artist.PAINTING_ARRAY.getName());
    assertTrue(exp2 instanceof ASTConcat);
    assertEquals(3, exp2.getOperandCount());
    assertEquals(Artist.ARTIST_NAME.path(), exp2.getOperand(0));
    assertEquals(Artist.DATE_OF_BIRTH.path(), exp2.getOperand(1));
    assertEquals(Artist.PAINTING_ARRAY.path(), exp2.getOperand(2));
}