Explanation Although I can’t reproduce this on AbstractItemCountingItemStreamItemReader from this artifact implementation group: ‘org.springframework.batch’, name: ‘spring-batch-core’, version: ‘4.1.2.RELEASE’ , this annotation means that the parent method has some @NotNull / @NonNull annotation on the parameter, while the overriding method has no. To fix it, you need to put the same annotation on the overriding method. … Read more
I think issue here is with the confusion between Create Table and Alter Table commands. If we look at Create table then we can add a default value and default constraint at same time as: <column_definition> ::= column_name <data_type> [ FILESTREAM ] [ COLLATE collation_name ] [ SPARSE ] [ NULL | NOT NULL ] … Read more
This is perfectly fine for CONSTRAINT CHECK. Just do this: Requirement: is it possible to create a constraint such that a column B can be null as long column A contains lets say ‘NEW’ but if the contents of column A changes to something else then column B is no longer allowed to be null? … Read more
NotEmpty is just a combination of @NotNull and @Size(min=1).
You can create your own method to copy properties while ignoring null values. public static String[] getNullPropertyNames (Object source) { final BeanWrapper src = new BeanWrapperImpl(source); java.beans.PropertyDescriptor[] pds = src.getPropertyDescriptors(); Set<String> emptyNames = new HashSet<String>(); for(java.beans.PropertyDescriptor pd : pds) { Object srcValue = src.getPropertyValue(pd.getName()); if (srcValue == null) emptyNames.add(pd.getName()); } String[] result = new String[emptyNames.size()]; … Read more
Try adding @Nonnull (javax.annotation.Nonnull) to the toArray method. The warning disappeared for me when I added this annotation. I think the warning message is incorrect which says that @NotNull is missing.
You can group them all in the same alter statement: alter table tbl alter col1 drop not null, alter col2 drop not null, … You can also retrieve the list of relevant columns from the catalog, if you feel like writing a do block to generate the needed sql. For instance, something like: select a.attname … Read more
You can also use change_column_null: change_column_null :table_name, :column_name, false
Short answer: There is no “compare-not-equal” instruction in IL, so the C# != operator has no exact correspondence and cannot be translated literally. There is however a “compare-equal” instruction (ceq, a direct correspondence to the == operator), so in the general case, x != y gets translated like its slightly longer equivalent (x == y) … Read more
As an option you can initially create Null-able column, then update your table column with valid not null values and finally ALTER column to set NOT NULL constraint: ALTER TABLE MY_TABLE ADD STAGE INT NULL GO UPDATE MY_TABLE SET <a valid not null values for your column> GO ALTER TABLE MY_TABLE ALTER COLUMN STAGE INT … Read more