java.lang.Object
- org.springframework.core.env.MutablePropertySources

All Implemented Interfaces:
Iterable<PropertySource<?>>, PropertySources
```
public class MutablePropertySources
extends Object
implements PropertySources
```
Default implementation of the PropertySources interface. Allows manipulation of contained property sources and provides a constructor for copying an existing PropertySources instance.
Where precedence is mentioned in methods such as addFirst(org.springframework.core.env.PropertySource<?>) and addLast(org.springframework.core.env.PropertySource<?>), this is with regard to the order in which property sources will be searched when resolving a given property with a PropertyResolver.
Since:
3.1
Author:
Chris Beams, Juergen Hoeller
See Also:
PropertySourcesPropertyResolver

Constructor Summary

Constructors
Constructor	Description
`MutablePropertySources()`	Create a new `MutablePropertySources` object.
`MutablePropertySources(PropertySources propertySources)`	Create a new `MutablePropertySources` from the given propertySources object, preserving the original order of contained `PropertySource` objects.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addAfter(String relativePropertySourceName, PropertySource<?> propertySource)`	Add the given property source object with precedence immediately lower than the named relative property source.
`void`	`addBefore(String relativePropertySourceName, PropertySource<?> propertySource)`	Add the given property source object with precedence immediately higher than the named relative property source.
`void`	`addFirst(PropertySource<?> propertySource)`	Add the given property source object with highest precedence.
`void`	`addLast(PropertySource<?> propertySource)`	Add the given property source object with lowest precedence.
`protected void`	`assertLegalRelativeAddition(String relativePropertySourceName, PropertySource<?> propertySource)`	Ensure that the given property source is not being added relative to itself.
`boolean`	`contains(String name)`	Return whether a property source with the given name is contained.
`PropertySource<?>`	`get(String name)`	Return the property source with the given name, `null` if not found.
`Iterator<PropertySource<?>>`	`iterator()`
`int`	`precedenceOf(PropertySource<?> propertySource)`	Return the precedence of the given property source, `-1` if not found.
`PropertySource<?>`	`remove(String name)`	Remove and return the property source with the given name, `null` if not found.
`protected void`	`removeIfPresent(PropertySource<?> propertySource)`	Remove the given property source if it is present.
`void`	`replace(String name, PropertySource<?> propertySource)`	Replace the property source with the given name with the given property source object.
`int`	`size()`	Return the number of `PropertySource` objects contained.
`String`	`toString()`

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

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Constructor Detail
  - MutablePropertySources
```
public MutablePropertySources()
```
    Create a new MutablePropertySources object.
  - MutablePropertySources
```
public MutablePropertySources(PropertySources propertySources)
```
    Create a new MutablePropertySources from the given propertySources object, preserving the original order of contained PropertySource objects.
- Method Detail
  - contains
```
public boolean contains(String name)
```
    Description copied from interface: PropertySources
    Return whether a property source with the given name is contained.
    Specified by:
    contains in interface PropertySources
    Parameters:
    name - the name of the property source to find
  - get
```
public PropertySource<?> get(String name)
```
    Description copied from interface: PropertySources
    Return the property source with the given name, null if not found.
    Specified by:
    get in interface PropertySources
    Parameters:
    name - the name of the property source to find
  - iterator
```
public Iterator<PropertySource<?>> iterator()
```
    Specified by:
    iterator in interface Iterable<PropertySource<?>>
  - addFirst
```
public void addFirst(PropertySource<?> propertySource)
```
    Add the given property source object with highest precedence.
  - addLast
```
public void addLast(PropertySource<?> propertySource)
```
    Add the given property source object with lowest precedence.
  - addBefore
```
public void addBefore(String relativePropertySourceName,
                      PropertySource<?> propertySource)
```
    Add the given property source object with precedence immediately higher than the named relative property source.
  - addAfter
```
public void addAfter(String relativePropertySourceName,
                     PropertySource<?> propertySource)
```
    Add the given property source object with precedence immediately lower than the named relative property source.
  - precedenceOf
```
public int precedenceOf(PropertySource<?> propertySource)
```
    Return the precedence of the given property source, -1 if not found.
  - remove
```
public PropertySource<?> remove(String name)
```
    Remove and return the property source with the given name, null if not found.
    Parameters:
    name - the name of the property source to find and remove
  - replace
```
public void replace(String name,
                    PropertySource<?> propertySource)
```
    Replace the property source with the given name with the given property source object.
    Parameters:
    name - the name of the property source to find and replace
    propertySource - the replacement property source
    Throws:
    IllegalArgumentException - if no property source with the given name is present
    See Also:
    contains(java.lang.String)
  - size
```
public int size()
```
    Return the number of PropertySource objects contained.
  - toString
```
public String toString()
```
    Overrides:
    toString in class Object
  - assertLegalRelativeAddition
```
protected void assertLegalRelativeAddition(String relativePropertySourceName,
                                           PropertySource<?> propertySource)
```
    Ensure that the given property source is not being added relative to itself.
  - removeIfPresent
```
protected void removeIfPresent(PropertySource<?> propertySource)
```
    Remove the given property source if it is present.

Class MutablePropertySources

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.lang.Iterable

Constructor Detail

MutablePropertySources

MutablePropertySources

Method Detail

contains

get

iterator

addFirst

addLast

addBefore

addAfter

precedenceOf

remove

replace

size

toString

assertLegalRelativeAddition

removeIfPresent