Examples with SQLIdentifierExpression io.shardingjdbc.core.parsing.parser.expression.SQLIdentifierExpression used on opensource projects

Example 1 with SQLIdentifierExpression

use of io.shardingjdbc.core.parsing.parser.expression.SQLIdentifierExpression in project sharding-jdbc by shardingjdbc.

the class BasicExpressionParser method parseExpression.

// TODO complete more expression parse
private SQLExpression parseExpression(final SQLStatement sqlStatement) {
    String literals = lexerEngine.getCurrentToken().getLiterals();
    final int beginPosition = lexerEngine.getCurrentToken().getEndPosition() - literals.length();
    final SQLExpression expression = getExpression(literals, sqlStatement);
    lexerEngine.nextToken();
    if (lexerEngine.skipIfEqual(Symbol.DOT)) {
        String property = lexerEngine.getCurrentToken().getLiterals();
        lexerEngine.nextToken();
        return skipIfCompositeExpression(sqlStatement) ? new SQLIgnoreExpression(lexerEngine.getInput().substring(beginPosition, lexerEngine.getCurrentToken().getEndPosition())) : new SQLPropertyExpression(new SQLIdentifierExpression(literals), property);
    }
    if (lexerEngine.equalAny(Symbol.LEFT_PAREN)) {
        lexerEngine.skipParentheses(sqlStatement);
        skipRestCompositeExpression(sqlStatement);
        return new SQLIgnoreExpression(lexerEngine.getInput().substring(beginPosition, lexerEngine.getCurrentToken().getEndPosition() - lexerEngine.getCurrentToken().getLiterals().length()).trim());
    }
    return skipIfCompositeExpression(sqlStatement) ? new SQLIgnoreExpression(lexerEngine.getInput().substring(beginPosition, lexerEngine.getCurrentToken().getEndPosition())) : expression;
}

Example 2 with SQLIdentifierExpression

use of io.shardingjdbc.core.parsing.parser.expression.SQLIdentifierExpression in project sharding-jdbc by shardingjdbc.

the class GroupByClauseParser method addGroupByItem.

private void addGroupByItem(final SQLExpression sqlExpression, final SelectStatement selectStatement) {
    lexerEngine.unsupportedIfEqual(getUnsupportedKeywordBeforeGroupByItem());
    OrderDirection orderDirection = OrderDirection.ASC;
    if (lexerEngine.equalAny(DefaultKeyword.ASC)) {
        lexerEngine.nextToken();
    } else if (lexerEngine.skipIfEqual(DefaultKeyword.DESC)) {
        orderDirection = OrderDirection.DESC;
    }
    OrderItem orderItem;
    if (sqlExpression instanceof SQLPropertyExpression) {
        SQLPropertyExpression sqlPropertyExpression = (SQLPropertyExpression) sqlExpression;
        orderItem = new OrderItem(SQLUtil.getExactlyValue(sqlPropertyExpression.getOwner().getName()), SQLUtil.getExactlyValue(sqlPropertyExpression.getName()), orderDirection, OrderDirection.ASC, selectStatement.getAlias(SQLUtil.getExactlyValue(sqlPropertyExpression.getOwner().getName() + "." + SQLUtil.getExactlyValue(sqlPropertyExpression.getName()))));
    } else if (sqlExpression instanceof SQLIdentifierExpression) {
        SQLIdentifierExpression sqlIdentifierExpression = (SQLIdentifierExpression) sqlExpression;
        orderItem = new OrderItem(SQLUtil.getExactlyValue(sqlIdentifierExpression.getName()), orderDirection, OrderDirection.ASC, selectStatement.getAlias(SQLUtil.getExactlyValue(sqlIdentifierExpression.getName())));
    } else if (sqlExpression instanceof SQLIgnoreExpression) {
        SQLIgnoreExpression sqlIgnoreExpression = (SQLIgnoreExpression) sqlExpression;
        orderItem = new OrderItem(sqlIgnoreExpression.getExpression(), orderDirection, OrderDirection.ASC, selectStatement.getAlias(sqlIgnoreExpression.getExpression()));
    } else {
        return;
    }
    selectStatement.getGroupByItems().add(orderItem);
}

Example 3 with SQLIdentifierExpression

use of io.shardingjdbc.core.parsing.parser.expression.SQLIdentifierExpression in project sharding-jdbc by shardingjdbc.

the class OrderByClauseParser method parseSelectOrderByItem.

private OrderItem parseSelectOrderByItem(final SelectStatement selectStatement) {
    SQLExpression sqlExpression = basicExpressionParser.parse(selectStatement);
    OrderDirection orderDirection = OrderDirection.ASC;
    if (lexerEngine.skipIfEqual(DefaultKeyword.ASC)) {
        orderDirection = OrderDirection.ASC;
    } else if (lexerEngine.skipIfEqual(DefaultKeyword.DESC)) {
        orderDirection = OrderDirection.DESC;
    }
    if (sqlExpression instanceof SQLNumberExpression) {
        return new OrderItem(((SQLNumberExpression) sqlExpression).getNumber().intValue(), orderDirection, getNullOrderDirection());
    }
    if (sqlExpression instanceof SQLIdentifierExpression) {
        return new OrderItem(SQLUtil.getExactlyValue(((SQLIdentifierExpression) sqlExpression).getName()), orderDirection, getNullOrderDirection(), selectStatement.getAlias(SQLUtil.getExactlyValue(((SQLIdentifierExpression) sqlExpression).getName())));
    }
    if (sqlExpression instanceof SQLPropertyExpression) {
        SQLPropertyExpression sqlPropertyExpression = (SQLPropertyExpression) sqlExpression;
        return new OrderItem(SQLUtil.getExactlyValue(sqlPropertyExpression.getOwner().getName()), SQLUtil.getExactlyValue(sqlPropertyExpression.getName()), orderDirection, getNullOrderDirection(), selectStatement.getAlias(SQLUtil.getExactlyValue(sqlPropertyExpression.getOwner().getName()) + "." + SQLUtil.getExactlyValue(sqlPropertyExpression.getName())));
    }
    if (sqlExpression instanceof SQLIgnoreExpression) {
        SQLIgnoreExpression sqlIgnoreExpression = (SQLIgnoreExpression) sqlExpression;
        return new OrderItem(sqlIgnoreExpression.getExpression(), orderDirection, getNullOrderDirection(), selectStatement.getAlias(sqlIgnoreExpression.getExpression()));
    }
    throw new SQLParsingException(lexerEngine);
}