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## org.codehaus.groovy.grails.commons.metaclass
Class LazyMetaPropertyMap

    java.lang.Object
      org.codehaus.groovy.grails.commons.metaclass.LazyMetaPropertyMap

All Implemented Interfaces:
  Map

Direct Known Subclasses:
  DataBindingLazyMetaPropertyMap

    public class LazyMetaPropertyMap

extends Object
implements Map

A map implementation that reads an objects properties lazily using Groovy's MetaClass.

Author:
  Graeme Rocher

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map
`Map.Entry<K,V>`

Constructor Summary
`LazyMetaPropertyMap(Object o)` Constructs the map

Method Summary
`void` | `clear()`
`boolean` | `containsKey(Object propertyName)`
`boolean` | `containsValue(Object o)` Checks whether the specified value is contained within the Map.
`Set<groovy.util.MapEntry>` | `entrySet()`
`boolean` | `equals(Object o)`
`Object` | `get(Object propertyName)` Obtains the value of an object's properties on demand using Groovy's MOP.
`Object` | `getInstance()` Returns the wrapped instance.
`int` | `hashCode()`
`boolean` | `isEmpty()`
`Set<String>` | `keySet()`
`Object` | `put(Object propertyName, Object propertyValue)`
`void` | `putAll(Map map)`
`Object` | `remove(Object o)`
`int` | `size()`
`Collection<Object>` | `values()`

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

Constructor Detail

### LazyMetaPropertyMap

    public LazyMetaPropertyMap(Object o)

  Constructs the map

  Parameters:
    `o` - The object to inspect

Method Detail

### size

    public int size()

  Specified by:
    `size` in interface `Map`
  See Also:
    `Map.size()`

### isEmpty

    public boolean isEmpty()

  Specified by:
    `isEmpty` in interface `Map`
  See Also:
    `Map.isEmpty()`

### containsKey

    public boolean containsKey(Object propertyName)

  Specified by:
    `containsKey` in interface `Map`
  See Also:
    `Map.containsKey(java.lang.Object)`

### containsValue

    public boolean containsValue(Object o)

  Checks whether the specified value is contained within the Map. Note that because this implementation lazily initialises property values the behaviour may not be consistent with the actual values of the contained object unless they have already been initialised by calling get(Object)

  Specified by:
    `containsValue` in interface `Map`
  See Also:
    `Map.containsValue(Object)`

### get

    public Object get(Object propertyName)

  Obtains the value of an object's properties on demand using Groovy's MOP.

  Specified by:
    `get` in interface `Map`
  Parameters:
    `propertyName` - The name of the property
  Returns:
    The property value or null

### put

    public Object put(Object propertyName,
                      Object propertyValue)

  Specified by:
    `put` in interface `Map`

### remove

    public Object remove(Object o)

  Specified by:
    `remove` in interface `Map`
  Throws:
    `UnsupportedOperationException`

### putAll

    public void putAll(Map map)

  Specified by:
    `putAll` in interface `Map`

### clear

    public void clear()

  Specified by:
    `clear` in interface `Map`
  Throws:
    `UnsupportedOperationException`

### keySet

    public Set<String> keySet()

  Specified by:
    `keySet` in interface `Map`

### values

    public Collection<Object> values()

  Specified by:
    `values` in interface `Map`

### hashCode

    public int hashCode()

  Specified by:
    `hashCode` in interface `Map`
  Overrides:
    `hashCode` in class `Object`

### equals

    public boolean equals(Object o)

  Specified by:
    `equals` in interface `Map`
  Overrides:
    `equals` in class `Object`

### getInstance

    public Object getInstance()

  Returns the wrapped instance.

  Returns:
    The wrapped instance

### entrySet

    public Set<groovy.util.MapEntry> entrySet()

  Specified by:
    `entrySet` in interface `Map`

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