Class IcebergStructField

    • Method Detail

      • id

        public final Integer id()

        The unique identifier assigned to this field within the Iceberg table schema, used for schema evolution and field tracking.

        Returns:
        The unique identifier assigned to this field within the Iceberg table schema, used for schema evolution and field tracking.
      • name

        public final String name()

        The name of the field as it appears in the table schema and query operations.

        Returns:
        The name of the field as it appears in the table schema and query operations.
      • type

        public final Document type()

        The data type definition for this field, specifying the structure and format of the data it contains.

        Returns:
        The data type definition for this field, specifying the structure and format of the data it contains.
      • required

        public final Boolean required()

        Indicates whether this field is required (non-nullable) or optional (nullable) in the table schema.

        Returns:
        Indicates whether this field is required (non-nullable) or optional (nullable) in the table schema.
      • doc

        public final String doc()

        Optional documentation or description text that provides additional context about the purpose and usage of this field.

        Returns:
        Optional documentation or description text that provides additional context about the purpose and usage of this field.
      • initialDefault

        public final Document initialDefault()

        Default value used to populate the field's value for all records that were written before the field was added to the schema. This enables backward compatibility when adding new fields to existing Iceberg tables.

        Returns:
        Default value used to populate the field's value for all records that were written before the field was added to the schema. This enables backward compatibility when adding new fields to existing Iceberg tables.
      • writeDefault

        public final Document writeDefault()

        Default value used to populate the field's value for any records written after the field was added to the schema, if the writer does not supply the field's value. This can be changed through schema evolution.

        Returns:
        Default value used to populate the field's value for any records written after the field was added to the schema, if the writer does not supply the field's value. This can be changed through schema evolution.
      • hashCode

        public final int hashCode()
        Overrides:
        hashCode in class Object
      • equals

        public final boolean equals​(Object obj)
        Overrides:
        equals in class Object
      • toString

        public final String toString()
        Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.
        Overrides:
        toString in class Object
      • getValueForField

        public final <T> Optional<T> getValueForField​(String fieldName,
                                                      Class<T> clazz)