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Discussion: Fluent builder api

See original GitHub issue

Is it desirable that the model also supports the builder pattern?

If we change setters and add* methods returning “this” building sql will be very easy … i.e.

@Test
    public void testParseAndBuild() throws JSQLParserException {
        String sql = "SELECT * FROM tab1 t1 "
                + "JOIN tab2 t2 ON t1.ref = t2.id WHERE t1.col1 = ? OR t1.col2 = ?";
        Statement stmt = CCJSqlParserUtil.parse(sql);
        StringBuilder buffer = new StringBuilder();
        stmt.accept(new StatementDeParser(buffer));
        assertEquals(sql, buffer.toString());

        Table t1 = new Table("tab1").setAlias(new Alias("t1", false));
        Table t2 = new Table("tab2").setAlias(new Alias("t2", false));

        Select select = new Select().setSelectBody(
                new PlainSelect().setFromItem(t1)
                        .setSelectItems(Arrays.asList(new AllColumns()))
                        .setJoins(
                                Arrays.asList(new Join().setRightItem(t2).setOnExpression(
                                        new EqualsTo(new Column(t1, "ref"), new Column(t2, "id")))))
                        .setWhere(new OrExpression(new EqualsTo(new Column(t1, "col1"), new JdbcParameter()),
                                new EqualsTo(new Column(t1, "col2"), new JdbcParameter()))));
        buffer = new StringBuilder();
        select.accept(new StatementDeParser(buffer));
        assertEquals(sql, buffer.toString());
    }

I did a fork starting the change to get a picture of it.

See https://github.com/gitmotte/JSqlParser