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## org.apache.struts.tiles.xmlDefinition
Class FactorySet

    java.lang.Object
      |
      +--org.apache.struts.tiles.xmlDefinition.FactorySet

All Implemented Interfaces:
  ComponentDefinitionsFactory, java.io.Serializable

Direct Known Subclasses:
  I18nFactorySet

public abstract class FactorySet
extends java.lang.Object
implements ComponentDefinitionsFactory

Component Definitions factory. This factory contains several factories identified by a key. The getDefinition() method first looks for the factory key, retrieves or creates this factory and then calls its getDefinition().

See Also:
  Serialized Form

Field Summary
`protected java.util.Map` | `factories` Loaded factories

Constructor Summary
`FactorySet()` Constructor.

Method Summary
`protected abstract DefinitionsFactory` | `createFactory(java.lang.Object key, javax.servlet.ServletRequest request, javax.servlet.ServletContext servletContext)` Create a factory for specified key.
`protected abstract DefinitionsFactory` | `getDefaultFactory()` Get default factory.
`ComponentDefinition` | `getDefinition(java.lang.String name, javax.servlet.ServletRequest request, javax.servlet.ServletContext servletContext)` Get a definition by its name.
`protected abstract java.lang.Object` | `getDefinitionsFactoryKey(java.lang.String name, javax.servlet.ServletRequest request, javax.servlet.ServletContext servletContext)` Extract key that will be used to get the sub factory.
`protected DefinitionsFactory` | `getFactory(java.lang.Object key, javax.servlet.ServletRequest request, javax.servlet.ServletContext servletContext)` Get a factory by its key.
`abstract void` | `initFactory(javax.servlet.ServletContext servletContext, java.util.Map properties)` Init factory set.
`java.lang.String` | `toString()` Return String representation.

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

Field Detail

### factories

    protected java.util.Map factories

  Loaded factories

Constructor Detail

### FactorySet

    public FactorySet()

  Constructor.

Method Detail

### getDefinitionsFactoryKey

    protected abstract java.lang.Object getDefinitionsFactoryKey(java.lang.String name,
                                                                 javax.servlet.ServletRequest request,
                                                                 javax.servlet.ServletContext servletContext)

  Extract key that will be used to get the sub factory.

  Parameters:
    `name` - Name of requested definition.
    `request` - Current servlet request.
    `servletContext` - Current servlet context.
  Returns:
    Object.

### getDefaultFactory

    protected abstract DefinitionsFactory getDefaultFactory()

  Get default factory.

  Returns:
    Default factory.

### getFactory

    protected DefinitionsFactory getFactory(java.lang.Object key,
                                            javax.servlet.ServletRequest request,
                                            javax.servlet.ServletContext servletContext)
                                     throws DefinitionsFactoryException

  Get a factory by its key. If key is `null`, return defaultFactory. Search in loaded factories. If not found, create factory and store return value in loaded factories.

  Parameters:
    `key` - Key of requested definition.
    `request` - Current servlet request.
    `servletContext` - Current servlet context.
  Throws:
    `DefinitionsFactoryException` - If an error occur while creating factory.

### getDefinition

    public ComponentDefinition getDefinition(java.lang.String name,
                                             javax.servlet.ServletRequest request,
                                             javax.servlet.ServletContext servletContext)
                                      throws NoSuchDefinitionException,
                                             DefinitionsFactoryException

  Get a definition by its name.

  Specified by:
    `getDefinition` in interface `ComponentDefinitionsFactory`
  Parameters:
    `name` - Name of requested definition.
    `request` - Current servlet request.
    `servletContext` - Current servlet context.
  Throws:
    `NoSuchDefinitionException` - No definition found for specified name
    `DefinitionsFactoryException` - General exception

### createFactory

    protected abstract DefinitionsFactory createFactory(java.lang.Object key,
                                                        javax.servlet.ServletRequest request,
                                                        javax.servlet.ServletContext servletContext)
                                                 throws DefinitionsFactoryException

  Create a factory for specified key. This method is called by getFactory() when the requested factory doesn't already exist. Must return a factory, or a default one. Real implementation needs to provide this method.

  Parameters:
    `key` - Key of requested definition.
    `request` - Current servlet request.
    `servletContext` - Current servlet context
  Throws:
    `DefinitionsFactoryException` - If an error occur while creating factory.

### initFactory

    public abstract void initFactory(javax.servlet.ServletContext servletContext,
                                     java.util.Map properties)
                              throws DefinitionsFactoryException

  Init factory set.

  Specified by:
    `initFactory` in interface `ComponentDefinitionsFactory`
  Parameters:
    `servletContext` - Current servlet context
    `properties` - properties used to initialized factory set;
  Throws:
    `DefinitionsFactoryException` - An error occur during initialization.

### toString

    public java.lang.String toString()

  Return String representation.

  Overrides:
    `toString` in class `java.lang.Object`
  Returns:
    String representation.

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