org.modeshape.jcr.query.validate

## Interface Schemata.Key

- All Known Implementing Classes:
    ImmutableKey
  Enclosing interface:
    Schemata

      public static interface Schemata.Key

  Information about a key for a table.

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Set<Schemata.Column>` | `getColumns()` Get the columns that make up this key.
    `boolean` | `hasColumns(Iterable<Schemata.Column> columns)` Determine whether this key contains exactly those columns listed.
    `boolean` | `hasColumns(Schemata.Column... columns)` Determine whether this key contains exactly those columns listed.

- - ### Method Detail

    - #### getColumns

          Set<Schemata.Column> getColumns()

      Get the columns that make up this key.
      Returns:
        the key's columns; immutable and never null

    - #### hasColumns

          boolean hasColumns(Schemata.Column... columns)

      Determine whether this key contains exactly those columns listed.
      Parameters:
        `columns` - the columns for the key
      Returns:
        true if this key contains exactly the supplied columns, or false otherwise

    - #### hasColumns

          boolean hasColumns(Iterable<Schemata.Column> columns)

      Determine whether this key contains exactly those columns listed.
      Parameters:
        `columns` - the columns for the key
      Returns:
        true if this key contains exactly the supplied columns, or false otherwise

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