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## org.apache.cayenne.map
Class MapLoader

    java.lang.Object
      org.xml.sax.helpers.DefaultHandler
          org.apache.cayenne.map.MapLoader

All Implemented Interfaces:
  ContentHandler, DTDHandler, EntityResolver, ErrorHandler

    public class MapLoader

extends DefaultHandler

Default MapLoader. Its responsibilities include reading DataMaps from XML files and saving DataMap objects back to XML.

Field Summary
`static String` | `DATA_MAP_ROOT`
`static String` | `DATA_MAP_TAG`
`static String` | `DB_ATTRIBUTE_PAIR_TAG`
`static String` | `DB_ATTRIBUTE_TAG`
`static String` | `DB_ENTITY_ROOT`
`static String` | `DB_ENTITY_TAG`
`static String` | `DB_GENERATOR_NAME_TAG`
`static String` | `DB_GENERATOR_TYPE_TAG`
`static String` | `DB_KEY_CACHE_SIZE_TAG`
`static String` | `DB_KEY_GENERATOR_TAG`
`static String` | `DB_RELATIONSHIP_REF_TAG`
`static String` | `DB_RELATIONSHIP_TAG`
`static String` | `EMBEDDABLE_ATTRIBUTE_OVERRIDE_TAG`
`static String` | `EMBEDDABLE_ATTRIBUTE_TAG`
`static String` | `EMBEDDABLE_TAG`
`static String` | `EMBEDDED_ATTRIBUTE_TAG`
`static String` | `ENTITY_LISTENER_TAG`
`static String` | `FALSE`
`static String` | `JAVA_CLASS_ROOT`
`static String` | `OBJ_ATTRIBUTE_OVERRIDE_TAG`
`static String` | `OBJ_ATTRIBUTE_TAG`
`static String` | `OBJ_ENTITY_ROOT`
`static String` | `OBJ_ENTITY_TAG`
`static String` | `OBJ_RELATIONSHIP_TAG`
`static String` | `POST_ADD_TAG`
`static String` | `POST_LOAD_TAG`
`static String` | `POST_PERSIST_TAG`
`static String` | `POST_REMOVE_TAG`
`static String` | `POST_UPDATE_TAG`
`static String` | `PRE_PERSIST_TAG`
`static String` | `PRE_REMOVE_TAG`
`static String` | `PRE_UPDATE_TAG`
`static String` | `PROCEDURE_PARAMETER_TAG`
`static String` | `PROCEDURE_ROOT`
`static String` | `PROCEDURE_TAG`
`static String` | `PROPERTY_TAG`
`static String` | `QUERY_EJBQL_TAG`
`static String` | `QUERY_ORDERING_TAG`
`static String` | `QUERY_PREFETCH_TAG`
`static String` | `QUERY_QUALIFIER_TAG`
`static String` | `QUERY_SQL_TAG`
`static String` | `QUERY_TAG`
`static String` | `TRUE`

Constructor Summary
`MapLoader()`

Method Summary
`void` | `characters(char[] text, int start, int length)`
`protected ResourceFinder` | `createResourceFinder()` Deprecated. since 3.1 as MapLoader should not bother itself with looking up resources.
`void` | `endElement(String namespaceURI, String localName, String qName)`
`DataMap` | `loadDataMap(InputSource src)` Loads a DataMap from XML input source.
`DataMap` | `loadDataMap(String uri)` Deprecated. since 3.1 `loadDataMap(InputSource)` should be used.
`protected String` | `mapNameFromLocation(String location)` Helper method to guess the map name from its location.
`void` | `startElement(String namespaceUri, String localName, String qName, Attributes attributes)`

Methods inherited from class org.xml.sax.helpers.DefaultHandler
`endDocument, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning`

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

Field Detail

### DATA_MAP_TAG

    public static final String DATA_MAP_TAG

See Also:
  Constant Field Values

### PROPERTY_TAG

    public static final String PROPERTY_TAG

See Also:
  Constant Field Values

### EMBEDDABLE_TAG

    public static final String EMBEDDABLE_TAG

Since:
  3.0
See Also:
  Constant Field Values

### EMBEDDABLE_ATTRIBUTE_TAG

    public static final String EMBEDDABLE_ATTRIBUTE_TAG

Since:
  3.0
See Also:
  Constant Field Values

### EMBEDDED_ATTRIBUTE_TAG

    public static final String EMBEDDED_ATTRIBUTE_TAG

Since:
  3.0
See Also:
  Constant Field Values

### EMBEDDABLE_ATTRIBUTE_OVERRIDE_TAG

    public static final String EMBEDDABLE_ATTRIBUTE_OVERRIDE_TAG

Since:
  3.0
See Also:
  Constant Field Values

### DB_ENTITY_TAG

    public static final String DB_ENTITY_TAG

See Also:
  Constant Field Values

### OBJ_ENTITY_TAG

    public static final String OBJ_ENTITY_TAG

See Also:
  Constant Field Values

### DB_ATTRIBUTE_TAG

    public static final String DB_ATTRIBUTE_TAG

See Also:
  Constant Field Values

### OBJ_ATTRIBUTE_TAG

    public static final String OBJ_ATTRIBUTE_TAG

See Also:
  Constant Field Values

### OBJ_ATTRIBUTE_OVERRIDE_TAG

    public static final String OBJ_ATTRIBUTE_OVERRIDE_TAG

See Also:
  Constant Field Values

### OBJ_RELATIONSHIP_TAG

    public static final String OBJ_RELATIONSHIP_TAG

See Also:
  Constant Field Values

### DB_RELATIONSHIP_TAG

    public static final String DB_RELATIONSHIP_TAG

See Also:
  Constant Field Values

### DB_RELATIONSHIP_REF_TAG

    public static final String DB_RELATIONSHIP_REF_TAG

See Also:
  Constant Field Values

### DB_ATTRIBUTE_PAIR_TAG

    public static final String DB_ATTRIBUTE_PAIR_TAG

See Also:
  Constant Field Values

### PROCEDURE_TAG

    public static final String PROCEDURE_TAG

See Also:
  Constant Field Values

### PROCEDURE_PARAMETER_TAG

    public static final String PROCEDURE_PARAMETER_TAG

See Also:
  Constant Field Values

### ENTITY_LISTENER_TAG

    public static final String ENTITY_LISTENER_TAG

See Also:
  Constant Field Values

### POST_ADD_TAG

    public static final String POST_ADD_TAG

See Also:
  Constant Field Values

### PRE_PERSIST_TAG

    public static final String PRE_PERSIST_TAG

See Also:
  Constant Field Values

### POST_PERSIST_TAG

    public static final String POST_PERSIST_TAG

See Also:
  Constant Field Values

### PRE_UPDATE_TAG

    public static final String PRE_UPDATE_TAG

See Also:
  Constant Field Values

### POST_UPDATE_TAG

    public static final String POST_UPDATE_TAG

See Also:
  Constant Field Values

### PRE_REMOVE_TAG

    public static final String PRE_REMOVE_TAG

See Also:
  Constant Field Values

### POST_REMOVE_TAG

    public static final String POST_REMOVE_TAG

See Also:
  Constant Field Values

### POST_LOAD_TAG

    public static final String POST_LOAD_TAG

See Also:
  Constant Field Values

### QUERY_TAG

    public static final String QUERY_TAG

See Also:
  Constant Field Values

### QUERY_SQL_TAG

    public static final String QUERY_SQL_TAG

See Also:
  Constant Field Values

### QUERY_EJBQL_TAG

    public static final String QUERY_EJBQL_TAG

See Also:
  Constant Field Values

### QUERY_QUALIFIER_TAG

    public static final String QUERY_QUALIFIER_TAG

See Also:
  Constant Field Values

### QUERY_ORDERING_TAG

    public static final String QUERY_ORDERING_TAG

See Also:
  Constant Field Values

### QUERY_PREFETCH_TAG

    public static final String QUERY_PREFETCH_TAG

See Also:
  Constant Field Values

### TRUE

    public static final String TRUE

See Also:
  Constant Field Values

### FALSE

    public static final String FALSE

See Also:
  Constant Field Values

### DB_KEY_GENERATOR_TAG

    public static final String DB_KEY_GENERATOR_TAG

See Also:
  Constant Field Values

### DB_GENERATOR_TYPE_TAG

    public static final String DB_GENERATOR_TYPE_TAG

See Also:
  Constant Field Values

### DB_GENERATOR_NAME_TAG

    public static final String DB_GENERATOR_NAME_TAG

See Also:
  Constant Field Values

### DB_KEY_CACHE_SIZE_TAG

    public static final String DB_KEY_CACHE_SIZE_TAG

See Also:
  Constant Field Values

### OBJ_ENTITY_ROOT

    public static final String OBJ_ENTITY_ROOT

Since:
  3.0
See Also:
  Constant Field Values

### DB_ENTITY_ROOT

    public static final String DB_ENTITY_ROOT

Since:
  3.0
See Also:
  Constant Field Values

### PROCEDURE_ROOT

    public static final String PROCEDURE_ROOT

Since:
  3.0
See Also:
  Constant Field Values

### DATA_MAP_ROOT

    public static final String DATA_MAP_ROOT

Since:
  3.0
See Also:
  Constant Field Values

### JAVA_CLASS_ROOT

    public static final String JAVA_CLASS_ROOT

Since:
  3.0
See Also:
  Constant Field Values

Constructor Detail

### MapLoader

    public MapLoader()

Method Detail

### loadDataMap

    public DataMap loadDataMap(InputSource src)
                        throws CayenneRuntimeException

  Loads a DataMap from XML input source.

  Throws:
    `CayenneRuntimeException`

### loadDataMap

    @Deprecated
    public DataMap loadDataMap(String uri)
                        throws CayenneRuntimeException

  Deprecated. since 3.1 `loadDataMap(InputSource)` should be used.

  Loads DataMap from file specified by `uri` parameter.

  Throws:
    `CayenneRuntimeException` - if source URI does not resolve to a valid map files

### mapNameFromLocation

    protected String mapNameFromLocation(String location)

  Helper method to guess the map name from its location.

### createResourceFinder

    @Deprecated
    protected ResourceFinder createResourceFinder()

  Deprecated. since 3.1 as MapLoader should not bother itself with looking up resources.

  Creates, configures and returns a default ResourceFinder.

  Since:
    3.0

### startElement

    public void startElement(String namespaceUri,
                             String localName,
                             String qName,
                             Attributes attributes)
                      throws SAXException

  Specified by:
    `startElement` in interface `ContentHandler`
  Overrides:
    `startElement` in class `DefaultHandler`
  Throws:
    `SAXException`

### endElement

    public void endElement(String namespaceURI,
                           String localName,
                           String qName)
                    throws SAXException

  Specified by:
    `endElement` in interface `ContentHandler`
  Overrides:
    `endElement` in class `DefaultHandler`
  Throws:
    `SAXException`

### characters

    public void characters(char[] text,
                           int start,
                           int length)
                    throws SAXException

  Specified by:
    `characters` in interface `ContentHandler`
  Overrides:
    `characters` in class `DefaultHandler`
  Throws:
    `SAXException`

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