Module io.github.mmm.orm
Package io.github.mmm.orm.metadata

Interface DbColumn

All Superinterfaces:
DbObject, DbObjectWithComment
All Known Implementing Classes:
DbColumnImpl
public interface DbColumn extends DbObjectWithComment
Meta-information about a column of a table.
Since:
1.0.0

  • Method Details

    • getNullable

      Boolean getNullable()
      Returns:
      Boolean.TRUE if nullable, Boolean.FALSE if value cannot be null, and null if unknown.

    • getTypeCode

      int getTypeCode()
      Returns:
      the type of this column as SQL type constant.

    • getTypeName

      String getTypeName()
      Returns:
      the type of this column as String.

    • getSize

      int getSize()
      Returns:
      the size of this column (e.g. the maximum length of a string).

    • getDecimalDigits

      int getDecimalDigits()
      Returns:
      the number of decimal digits for numeric values. Will be 0 for values that are not numeric.