Actions Available at Container Level

In a Berkeley DB XML repository, the actions available at container level in the Data Source Explorer view are as follows:

Add Resource

Adds a new XML resource to the selected container.

Rename

Allows you to specify a new name for the selected container.

Delete

Removes the selected container from the database tree.

Edit indices

Allows you to edit the indices for the selected container.

Refresh

Performs a refresh for the sub-tree of the selected node.

Properties

Displays a dialog box with a list of properties of the Berkeley container (such as container type, auto indexing, page size, validate on load, compression algorithm, number of documents, etc.)

Figure: Container indices

The fields of the dialog box are as follows:

• Granularity:
  • Document level - Good option for retrieving large documents.
  • Node level - Good option for retrieving nodes from within documents.
• Add / Edit indices:

  • Node - The node name.
  • Namespace - The index namespace.
  • Index strategy:

    • Index type:
      • Uniqueness - Indicates whether the indexed value must be unique within the container.
      • Path type:
        • node - Indicates that you want to index a single node in the path.
        • edge - Indicates that you want to index the portion of the path where two nodes meet.
      • Node type:
        • element - An element node in the document content.
        • attribute - An attribute node in the document content.
        • metadata - A node found only in the metadata content of a document.
      • Key type:
        • equality - Improves the performances of tests that look for nodes with a specific value.
        • presence - Improves the performances of tests that look for the existence of a node regardless of its value.
        • substring - Improves the performance of tests that look for a node whose value contains a given sub-string.
    • Syntax types - The syntax describes the type of data the index contains and is mostly used to determine how indexed values are compared.