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## com.dbxml.db.core.adapter
Class SimpleAdapter

    java.lang.Object
      com.dbxml.db.core.adapter.SimpleAdapter

All Implemented Interfaces:
  Adapter

Direct Known Subclasses:
  DOMAdapter, JAXBElementAdapter, SAXAdapter, XMLSerializableAdapter

public class SimpleAdapter
extends java.lang.Object
implements Adapter

SimpleAdapter is a base class for implementing custom Adapters.

Constructor Summary
`SimpleAdapter(Collection col)`

Method Summary
`java.lang.String` | `getCanonicalName()` getCanonicalName returns the canonical name for the underlying Collection.
`Collection` | `getCollection()` getCollection returns a reference to the underlying Collection.
`long` | `getKeyCount(Transaction tx)` getKeyCount returns the count of objects being maintained by this Adapter.
`java.lang.String` | `getName()` getName returns the name for the underlying Collection.
`Key[]` | `listKeys(Transaction tx)` listKeys returns a list of object keys stored managed by the Adapter.
`ResultSet` | `queryCollection(Transaction tx, java.lang.String style, java.lang.String query, NamespaceMap nsMap)` queryCollection performs a query against the current collection using the specified style and query String.
`ResultSet` | `queryDocument(Transaction tx, java.lang.String style, java.lang.String query, NamespaceMap nsMap, java.lang.Object key)` queryDocument performs a query against a single Document using the specified style, query string, and Document ID.
`void` | `remove(Transaction tx, java.lang.Object key)` remove removes an object from the Adapter based on its Key.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### SimpleAdapter

    public SimpleAdapter(Collection col)

Method Detail

### getCollection

    public Collection getCollection()

  Description copied from interface: `Adapter`
  getCollection returns a reference to the underlying Collection.

  Specified by:
    `getCollection` in interface `Adapter`
  Returns:
    The underlying Collection

### getName

    public java.lang.String getName()

  Description copied from interface: `Adapter`
  getName returns the name for the underlying Collection.
  ex: ocs

  Specified by:
    `getName` in interface `Adapter`
  Returns:
    The name

### getCanonicalName

    public java.lang.String getCanonicalName()

  Description copied from interface: `Adapter`
  getCanonicalName returns the canonical name for the underlying Collection.
  ex: /local/test/ocs

  Specified by:
    `getCanonicalName` in interface `Adapter`
  Returns:
    The canonical name

### getKeyCount

    public long getKeyCount(Transaction tx)
                     throws DBException

  Description copied from interface: `Adapter`
  getKeyCount returns the count of objects being maintained by this Adapter.

  Specified by:
    `getKeyCount` in interface `Adapter`
  Parameters:
    `tx` - The controlling Transaction
  Returns:
    The object count
  Throws:
    `DBException` - If a Database Exception occurs

### remove

    public void remove(Transaction tx,
                       java.lang.Object key)
                throws DBException

  Description copied from interface: `Adapter`
  remove removes an object from the Adapter based on its Key.

  Specified by:
    `remove` in interface `Adapter`
  Parameters:
    `tx` - The controlling Transaction
    `key` - The Object's Key
  Throws:
    `DBException` - If a Database Exception occurs

### listKeys

    public Key[] listKeys(Transaction tx)
                   throws DBException

  Description copied from interface: `Adapter`
  listKeys returns a list of object keys stored managed by the Adapter.

  Specified by:
    `listKeys` in interface `Adapter`
  Parameters:
    `tx` - The controlling Transaction
  Returns:
    the list of object keys
  Throws:
    `DBException` - If a Database Exception occurs

### queryCollection

    public ResultSet queryCollection(Transaction tx,
                                     java.lang.String style,
                                     java.lang.String query,
                                     NamespaceMap nsMap)
                              throws DBException

  Description copied from interface: `Adapter`
  queryCollection performs a query against the current collection using the specified style and query String.

  Specified by:
    `queryCollection` in interface `Adapter`
  Parameters:
    `tx` - The controlling Transaction
    `style` - The query style to use (ex: XPath)
    `query` - The query to execute
    `nsMap` - The namespace Map (if any)
  Returns:
    The resulting ResultSet
  Throws:
    `DBException` - If a Database Exception occurs

### queryDocument

    public ResultSet queryDocument(Transaction tx,
                                   java.lang.String style,
                                   java.lang.String query,
                                   NamespaceMap nsMap,
                                   java.lang.Object key)
                            throws DBException

  Description copied from interface: `Adapter`
  queryDocument performs a query against a single Document using the specified style, query string, and Document ID.

  Specified by:
    `queryDocument` in interface `Adapter`
  Parameters:
    `tx` - The controlling Transaction
    `style` - The query style to use (ex: XPath)
    `query` - The query to execute
    `nsMap` - The namespace Map (if any)
    `key` - The Document to query
  Returns:
    The resulting ResultSet
  Throws:
    `DBException` - If a Database Exception occurs

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Copyright (c) 2004 The dbXML Group