Class StorageDescriptor

    • Method Detail

      • hasColumns

        public final boolean hasColumns()
        For responses, this returns true if the service returned a value for the Columns property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.
      • columns

        public final List<Column> columns()

        A list of the Columns in the table.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasColumns() method.

        Returns:
        A list of the Columns in the table.
      • location

        public final String location()

        The physical location of the table. By default, this takes the form of the warehouse location, followed by the database location in the warehouse, followed by the table name.

        Returns:
        The physical location of the table. By default, this takes the form of the warehouse location, followed by the database location in the warehouse, followed by the table name.
      • hasAdditionalLocations

        public final boolean hasAdditionalLocations()
        For responses, this returns true if the service returned a value for the AdditionalLocations property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.
      • additionalLocations

        public final List<String> additionalLocations()

        A list of locations that point to the path where a Delta table is located.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasAdditionalLocations() method.

        Returns:
        A list of locations that point to the path where a Delta table is located.
      • inputFormat

        public final String inputFormat()

        The input format: SequenceFileInputFormat (binary), or TextInputFormat, or a custom format.

        Returns:
        The input format: SequenceFileInputFormat (binary), or TextInputFormat, or a custom format.
      • outputFormat

        public final String outputFormat()

        The output format: SequenceFileOutputFormat (binary), or IgnoreKeyTextOutputFormat, or a custom format.

        Returns:
        The output format: SequenceFileOutputFormat (binary), or IgnoreKeyTextOutputFormat, or a custom format.
      • compressed

        public final Boolean compressed()

        True if the data in the table is compressed, or False if not.

        Returns:
        True if the data in the table is compressed, or False if not.
      • numberOfBuckets

        public final Integer numberOfBuckets()

        Must be specified if the table contains any dimension columns.

        Returns:
        Must be specified if the table contains any dimension columns.
      • serdeInfo

        public final SerDeInfo serdeInfo()

        The serialization/deserialization (SerDe) information.

        Returns:
        The serialization/deserialization (SerDe) information.
      • hasBucketColumns

        public final boolean hasBucketColumns()
        For responses, this returns true if the service returned a value for the BucketColumns property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.
      • bucketColumns

        public final List<String> bucketColumns()

        A list of reducer grouping columns, clustering columns, and bucketing columns in the table.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasBucketColumns() method.

        Returns:
        A list of reducer grouping columns, clustering columns, and bucketing columns in the table.
      • hasSortColumns

        public final boolean hasSortColumns()
        For responses, this returns true if the service returned a value for the SortColumns property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.
      • sortColumns

        public final List<Order> sortColumns()

        A list specifying the sort order of each bucket in the table.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasSortColumns() method.

        Returns:
        A list specifying the sort order of each bucket in the table.
      • hasParameters

        public final boolean hasParameters()
        For responses, this returns true if the service returned a value for the Parameters property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.
      • parameters

        public final Map<String,​String> parameters()

        The user-supplied properties in key-value form.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasParameters() method.

        Returns:
        The user-supplied properties in key-value form.
      • skewedInfo

        public final SkewedInfo skewedInfo()

        The information about values that appear frequently in a column (skewed values).

        Returns:
        The information about values that appear frequently in a column (skewed values).
      • storedAsSubDirectories

        public final Boolean storedAsSubDirectories()

        True if the table data is stored in subdirectories, or False if not.

        Returns:
        True if the table data is stored in subdirectories, or False if not.
      • schemaReference

        public final SchemaReference schemaReference()

        An object that references a schema stored in the Glue Schema Registry.

        When creating a table, you can pass an empty list of columns for the schema, and instead use a schema reference.

        Returns:
        An object that references a schema stored in the Glue Schema Registry.

        When creating a table, you can pass an empty list of columns for the schema, and instead use a schema reference.

      • 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)