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ModelMap (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.ui
Class ModelMap

java.lang.Object
  java.util.AbstractMap<K,V>
      java.util.HashMap
          org.springframework.ui.ModelMap

All Implemented Interfaces:

Serializable, Cloneable, Map

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public class ModelMap
extends HashMap

Implementation of Map for use when building model data for use with UI tools. Supports chained calls and generation of model attribute names.

This class serves as generic model holder for both Servlet and Portlet MVC, but is tied to neither of those.

Since:

2.0

Author:

Rob Harrop

See Also:

Conventions.getVariableName(java.lang.Object), ModelAndView, ModelAndView, Serialized Form

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Nested Class Summary

 

Nested classes/interfaces inherited from class java.util.AbstractMap
AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

 

Constructor Summary
ModelMap()           Construct a new, empty ModelMap.
ModelMap(Object modelObject)           Construct a new ModelMap containing the supplied model object.
ModelMap(String modelName, Object modelObject)           Construct a new ModelMap containing the supplied model object under the supplied name.

 

Method Summary
ModelMap	addAllObjects(Collection objects)           Copy all objects in the supplied Collection into this Map, using attribute name generation for each element.
ModelMap	addAllObjects(Map objects)           Copy all objects in the supplied Map into this Map.
ModelMap	addObject(Object modelObject)           Add the supplied Object to this Map used a generated name.
ModelMap	addObject(String modelName, Object modelObject)           Add the supplied Object under the supplied name.

 

Methods inherited from class java.util.HashMap
clear, clone, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, putAll, remove, size, values

 

Methods inherited from class java.util.AbstractMap
equals, hashCode, toString

 

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

 

Methods inherited from interface java.util.Map
equals, hashCode

 

Constructor Detail

ModelMap

public ModelMap()

Construct a new, empty ModelMap.

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ModelMap

public ModelMap(String modelName,
                Object modelObject)

Construct a new ModelMap containing the supplied model object under the supplied name.

See Also:

addObject(String, Object)

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ModelMap

public ModelMap(Object modelObject)

Construct a new ModelMap containing the supplied model object. Uses attribute name generation to generate the key for the supplied model object.

See Also:

addObject(Object)

Method Detail

addObject

public ModelMap addObject(String modelName,
                          Object modelObject)

Add the supplied Object under the supplied name.

Parameters:

modelName - the name of the model attribute (never null)

modelObject - the model attribute object (can be null)

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addObject

public ModelMap addObject(Object modelObject)

Add the supplied Object to this Map used a generated name.

Note: Empty Collections are not added to the model when using this method because we cannot correctly determine the true convention name. View code should check for null rather than for empty collections as is already done by JSTL tags.

Parameters:

modelObject - the model attribute object (never null)

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addAllObjects

public ModelMap addAllObjects(Map objects)

Copy all objects in the supplied Map into this Map.

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addAllObjects

public ModelMap addAllObjects(Collection objects)

Copy all objects in the supplied Collection into this Map, using attribute name generation for each element.

See Also:

addObject(Object)

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