public Node visitColumn_attribute()

in fastmodel-transform/fastmodel-transform-oceanbase/src/main/java/com/aliyun/fastmodel/transform/oceanbase/parser/OceanBaseMysqlAstBuilder.java [783:834]

• 42 lines of code
• 16 McCabe index (conditional complexity)

    public Node visitColumn_attribute(Column_attributeContext ctx) {
        //not null
        if (ctx.not() != null && ctx.NULLX() != null) {
            return new NotNullConstraint(IdentifierUtil.sysIdentifier());
        }
        //comment
        if (ctx.COMMENT() != null) {
            TerminalNode terminalNode = ctx.STRING_VALUE();
            return new Comment(StripUtils.strip(terminalNode.getText()));
        }
        //check
        if (ctx.CHECK() != null) {
            Identifier identifier = IdentifierUtil.sysIdentifier();
            if (ctx.opt_constraint_name() != null) {
                identifier = (Identifier)visit(ctx.opt_constraint_name());
            }
            BaseExpression expression = (BaseExpression)visit(ctx.expr());
            Boolean enforced = null;
            if (ctx.check_state() != null) {
                enforced = ctx.check_state().NOT() == null && ctx.check_state().ENFORCED() != null;
            }
            return new CheckExpressionConstraint(identifier, expression, enforced);
        }
        //COLLATE
        if (ctx.COLLATE() != null) {
            String collateName = StripUtils.strip(ctx.collation_name().getText());
            return new Property(OceanBasePropertyKey.COLLATE.getValue(), collateName);
        }
        //default
        if (ctx.DEFAULT() != null) {
            BaseExpression baseExpression = (BaseExpression)visit(ctx.now_or_signed_literal());
            return new DefaultValueConstraint(IdentifierUtil.sysIdentifier(), baseExpression);
        }

        //unique key
        if (ctx.UNIQUE() != null && ctx.KEY() != null) {
            return new UniqueConstraint(IdentifierUtil.sysIdentifier(), Lists.newArrayList());
        }
        //primary key
        if (ctx.PRIMARY() != null || ctx.KEY() != null) {
            return new PrimaryConstraint(IdentifierUtil.sysIdentifier(), Lists.newArrayList());
        }
        //auto_increment
        if (ctx.AUTO_INCREMENT() != null) {
            return new Property(ExtensionPropertyKey.COLUMN_AUTO_INCREMENT.getValue(), String.valueOf(Boolean.TRUE));
        }
        //return null
        if (ctx.NULLX() != null) {
            return new NotNullConstraint(IdentifierUtil.sysIdentifier(), false);
        }
        return super.visitColumn_attribute(ctx);
    }