Examples with SQLAlterTableAlterColumn com.alibaba.druid.sql.ast.statement.SQLAlterTableAlterColumn used on opensource projects

Example 1 with SQLAlterTableAlterColumn

use of com.alibaba.druid.sql.ast.statement.SQLAlterTableAlterColumn in project druid by alibaba.

the class DB2StatementParser method parseAlterColumn.

protected SQLAlterTableAlterColumn parseAlterColumn() {
    if (lexer.token() == Token.COLUMN) {
        lexer.nextToken();
    }
    SQLColumnDefinition column = this.exprParser.parseColumn();
    SQLAlterTableAlterColumn alterColumn = new SQLAlterTableAlterColumn();
    alterColumn.setColumn(column);
    if (column.getDataType() == null && column.getConstraints().size() == 0) {
        if (lexer.token() == Token.SET) {
            lexer.nextToken();
            if (lexer.token() == Token.NOT) {
                lexer.nextToken();
                accept(Token.NULL);
                alterColumn.setSetNotNull(true);
            } else if (lexer.token() == Token.DEFAULT) {
                lexer.nextToken();
                SQLExpr defaultValue = this.exprParser.expr();
                alterColumn.setSetDefault(defaultValue);
            } else if (lexer.identifierEquals(FnvHash.Constants.DATA)) {
                lexer.nextToken();
                acceptIdentifier("TYPE");
                SQLDataType dataType = this.exprParser.parseDataType();
                alterColumn.setDataType(dataType);
            } else {
                throw new ParserException("TODO : " + lexer.info());
            }
        } else if (lexer.token() == Token.DROP) {
            lexer.nextToken();
            if (lexer.token() == Token.NOT) {
                lexer.nextToken();
                accept(Token.NULL);
                alterColumn.setDropNotNull(true);
            } else {
                accept(Token.DEFAULT);
                alterColumn.setDropDefault(true);
            }
        }
    }
    return alterColumn;
}

Example 2 with SQLAlterTableAlterColumn

use of com.alibaba.druid.sql.ast.statement.SQLAlterTableAlterColumn in project druid by alibaba.

the class SQLASTVisitorAdapterTest method test_adapter.

public void test_adapter() throws Exception {
    SQLASTVisitorAdapter adapter = new SQLASTVisitorAdapter();
    new SQLBinaryOpExpr().accept(adapter);
    new SQLInListExpr().accept(adapter);
    new SQLSelectQueryBlock().accept(adapter);
    new SQLDropTableStatement().accept(adapter);
    new SQLCreateTableStatement().accept(adapter);
    new SQLDeleteStatement().accept(adapter);
    new SQLCurrentOfCursorExpr().accept(adapter);
    new SQLInsertStatement().accept(adapter);
    new SQLUpdateStatement().accept(adapter);
    new SQLNotNullConstraint().accept(adapter);
    new SQLMethodInvokeExpr().accept(adapter);
    new SQLCallStatement().accept(adapter);
    new SQLSomeExpr().accept(adapter);
    new SQLAnyExpr().accept(adapter);
    new SQLAllExpr().accept(adapter);
    new SQLDefaultExpr().accept(adapter);
    new SQLCommentStatement().accept(adapter);
    new SQLDropViewStatement().accept(adapter);
    new SQLSavePointStatement().accept(adapter);
    new SQLReleaseSavePointStatement().accept(adapter);
    new SQLCreateDatabaseStatement().accept(adapter);
    new SQLAlterTableDropIndex().accept(adapter);
    new SQLOver().accept(adapter);
    new SQLWithSubqueryClause().accept(adapter);
    new SQLAlterTableAlterColumn().accept(adapter);
    new SQLAlterTableStatement().accept(adapter);
    new SQLAlterTableDisableConstraint().accept(adapter);
    new SQLAlterTableEnableConstraint().accept(adapter);
    new SQLColumnCheck().accept(adapter);
    new SQLExprHint().accept(adapter);
    new SQLAlterTableDropConstraint().accept(adapter);
}