Examples with AstFieldReference com.developmentontheedge.sql.model.AstFieldReference used on opensource projects

Example 1 with AstFieldReference

use of com.developmentontheedge.sql.model.AstFieldReference in project be5 by DevelopmentOnTheEdge.

the class CategoryFilter method processTableRef.

private void processTableRef(AstTableRef ref) {
    String alias = Optional.ofNullable(ref.getAlias()).orElse(entity);
    AstFunNode categoryCondition = DefaultParserContext.FUNC_EQ.node(new AstFieldReference(identifier("classifications"), identifier("categoryID")), AstNumericConstant.of(categoryId));
    AstFunNode recordCondition = DefaultParserContext.FUNC_EQ.node(new AstFieldReference(identifier("classifications"), identifier("recordID")), new AstFieldReference(identifier(alias), identifier(primaryKeyColumn)));
    AstJoin join = JoinType.INNER.node("classifications", DefaultParserContext.FUNC_AND.node(categoryCondition, recordCondition));
    ref.appendSibling(join);
}

Example 2 with AstFieldReference

use of com.developmentontheedge.sql.model.AstFieldReference in project be5 by DevelopmentOnTheEdge.

the class AstUpdateBuildTest method testAstFieldReference.

@Test
public void testAstFieldReference() {
    AstUpdate update = Ast.update("users").set(Collections.singletonMap(new AstFieldReference("___name", true), "Test"));
    assertEquals("UPDATE users SET \"___name\"='Test'", update.format());
}

Example 3 with AstFieldReference

use of com.developmentontheedge.sql.model.AstFieldReference in project be5 by DevelopmentOnTheEdge.

the class OracleTransformer method transformSelect.

@Override
protected void transformSelect(AstSelect select) {
    super.transformSelect(select);
    AstLimit limit = select.getLimit();
    if (limit != null) {
        select.dropLimit();
        SimpleNode parent = select.jjtGetParent();
        int idx = parent.indexOf(select);
        AstTableRef tableRef = new AstTableRef(select);
        AstFrom from = new AstFrom(tableRef);
        AstWhere where = new AstWhere();
        AstFunNode less = parserContext.getFunction("<=").node(new AstIdentifierConstant("ROWNUM"), AstNumericConstant.of(limit.getLimit() + limit.getOffset()));
        where.addChild(less);
        if (limit.getOffset() == 0) {
            AstSelect newSelect = new AstSelect(new AstSelectList(), from, where);
            parent.jjtAddChild(newSelect, idx);
        } else {
            AstSelectList list = new AstSelectList();
            list.addChild(new AstFieldReference(new AstIdentifierConstant("tmp"), new AstIdentifierConstant("*,")));
            list.addChild(new AstIdentifierConstant("ROWNUM rn"));
            tableRef.addChild(new AstIdentifierConstant("tmp"));
            AstSelect innerSelect = new AstSelect(list, from, where);
            AstWhere outerWhere = new AstWhere();
            AstFunNode more = parserContext.getFunction(">").node(new AstIdentifierConstant("ROWNUM"), AstNumericConstant.of(limit.getOffset()));
            outerWhere.addChild(more);
            AstSelect outerSelect = new AstSelect(select.getSelectList(), new AstFrom(new AstTableRef(innerSelect)), outerWhere);
            parent.jjtAddChild(outerSelect, idx);
        }
    }
}

Example 4 with AstFieldReference

use of com.developmentontheedge.sql.model.AstFieldReference in project be5 by DevelopmentOnTheEdge.

the class SqlServerTransformer method transformSelect.

@Override
protected void transformSelect(AstSelect select) {
    AstLimit limit = select.getLimit();
    if (limit != null) {
        if (limit.getOffset() == 0) {
            limit.setShape("TOP", null);
            select.moveToFront(limit);
        } else {
            if (select.getOrderBy() == null)
                throw new IllegalStateException("The ranking function \"ROW_NUMBER\" must have an ORDER BY clause");
            select.dropLimit();
            SimpleNode parent = select.jjtGetParent();
            int idx = parent.indexOf(select);
            AstIdentifierConstant tmp = new AstIdentifierConstant("tmp");
            AstIdentifierConstant rn = new AstIdentifierConstant("rn");
            AstSelectList list = select.getSelectList();
            AstTableRef tableRef = new AstTableRef(select);
            tableRef.setAsToken(true);
            tableRef.addChild(tmp);
            AstFrom from = new AstFrom(tableRef);
            AstWhere where = new AstWhere();
            AstBetweenPredicate between = new AstBetweenPredicate(new AstFieldReference(tmp, rn), AstNumericConstant.of(limit.getOffset()), AstNumericConstant.of(limit.getOffset() + limit.getLimit()));
            where.addChild(between);
            AstSelect newSelect = new AstSelect((AstSelectList) list.clone(), from, where);
            AstFunNode func = parserContext.getFunction("row_number").node();
            AstDerivedColumn derCol = new AstDerivedColumn(new AstWindowFunction(func, new AstWindowSpecification(select.getOrderBy())));
            select.dropOrder();
            derCol.setPrefixComma(true);
            derCol.setAsToken(true);
            derCol.addChild(rn);
            if (list.isAllColumns()) {
                for (AstTableRef tr : select.getFrom().tableRefs()) {
                    String tableName = tr.getAlias() == null ? tr.getTable() : tr.getAlias();
                    list.addChild(new AstFieldReference(new AstIdentifierConstant(tableName), new AstIdentifierConstant("*")));
                }
            }
            list.addChild(derCol);
            parent.jjtAddChild(newSelect, idx);
        }
    }
    super.transformSelect(select);
}

Example 5 with AstFieldReference

use of com.developmentontheedge.sql.model.AstFieldReference in project be5 by DevelopmentOnTheEdge.

the class AstInsertBuildTest method test.

@Test
public void test() {
    AstInsert insert = Ast.insert("users").fields(new AstFieldReference("name")).values(AstReplacementParameter.get());
    assertEquals("INSERT INTO users (name) VALUES (?)", insert.format());
}