DefaultLookups (Apache Commons Configuration 2.7 API)

java.lang.Object
- java.lang.Enum<DefaultLookups>
- - org.apache.commons.configuration2.interpol.DefaultLookups

All Implemented Interfaces:

Serializable, Comparable<DefaultLookups>
```
public enum DefaultLookups
extends Enum<DefaultLookups>
```
An enumeration class defining constants for the Lookup objects available for each Configuration object per default.

When a new configuration object derived from AbstractConfiguration is created it installs a ConfigurationInterpolator with a default set of Lookup objects. These lookups are defined by this enumeration class.

All the default Lookup classes are state-less, thus their instances can be shared between multiple configuration objects. Therefore, it makes sense to keep shared instances in this enumeration class.
Provides access to lookups defined in Apache Commons Text:
- "base64Decoder" for the Base64DecoderStringLookup since Apache Commons Text 1.6.
- "base64Encoder" for the Base64EncoderStringLookup since Apache Commons Text 1.6.
- "const" for the ConstantStringLookup since Apache Commons Text 1.5.
- "date" for the DateStringLookup.
- "env" for the EnvironmentVariableStringLookup.
- "file" for the FileStringLookup since Apache Commons Text 1.5.
- "java" for the JavaPlatformStringLookup.
- "localhost" for the LocalHostStringLookup, see #localHostStringLookup() for key names; since Apache Commons Text 1.3.
- "properties" for the PropertiesStringLookup since Apache Commons Text 1.5.
- "resourceBundle" for the ResourceBundleStringLookup since Apache Commons Text 1.5.
- "script" for the ScriptStringLookup since Apache Commons Text 1.5.
- "sys" for the SystemPropertyStringLookup.
- "url" for the UrlStringLookup since Apache Commons Text 1.5.
- "urlDecoder" for the UrlDecoderStringLookup since Apache Commons Text 1.6.
- "urlEncoder" for the UrlEncoderStringLookup since Apache Commons Text 1.6.
- "xml" for the XmlStringLookup since Apache Commons Text 1.5.
Since:

2.0

Enum Constant Summary

Enum Constants
Enum Constant and Description
`BASE64_DECODER` The lookup for Base64 decoding.
`BASE64_ENCODER` The lookup for Base64 decoding.
`CONST` The lookup for constants.
`DATE` The lookup for dates.
`DNS` The lookup for DNS.
`ENVIRONMENT` The lookup for environment properties.
`FILE` The lookup for files.
`JAVA` The lookup for Java platform information.
`LOCAL_HOST` The lookup for localhost information.
`PROPERTIES` The lookup for properties.
`RESOURCE_BUNDLE` The lookup for resource bundles.
`SCRIPT` The lookup for scripts.
`SYSTEM_PROPERTIES` The lookup for system properties.
`URL` The lookup for URLs.
`URL_DECODER` The lookup for URL decoding.
`URL_ENCODER` The lookup for URL decoding.
`XML` The lookup for URL decoding.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Lookup`	`getLookup()` Returns the standard `Lookup` instance of this kind.
`String`	`getPrefix()` Returns the standard prefix for the lookup object of this kind.
`static DefaultLookups`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static DefaultLookups[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

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

- Enum Constant Detail
  - BASE64_DECODER
```
public static final DefaultLookups BASE64_DECODER
```
    The lookup for Base64 decoding.
    
    Since:
    
    2.4
  - BASE64_ENCODER
```
public static final DefaultLookups BASE64_ENCODER
```
    The lookup for Base64 decoding.
    
    Since:
    
    2.4
  - CONST
```
public static final DefaultLookups CONST
```
    The lookup for constants.
    
    Since:
    
    2.4
  - DATE
```
public static final DefaultLookups DATE
```
    The lookup for dates.
    
    Since:
    
    2.4
  - DNS
```
public static final DefaultLookups DNS
```
    The lookup for DNS.
    
    Since:
    
    2.6
  - ENVIRONMENT
```
public static final DefaultLookups ENVIRONMENT
```
    The lookup for environment properties.
  - FILE
```
public static final DefaultLookups FILE
```
    The lookup for files.
    
    Since:
    
    2.4
  - JAVA
```
public static final DefaultLookups JAVA
```
    The lookup for Java platform information.
    
    Since:
    
    2.4
  - LOCAL_HOST
```
public static final DefaultLookups LOCAL_HOST
```
    The lookup for localhost information.
    
    Since:
    
    2.4
  - PROPERTIES
```
public static final DefaultLookups PROPERTIES
```
    The lookup for properties.
    
    Since:
    
    2.4
  - RESOURCE_BUNDLE
```
public static final DefaultLookups RESOURCE_BUNDLE
```
    The lookup for resource bundles.
    
    Since:
    
    2.4
  - SCRIPT
```
public static final DefaultLookups SCRIPT
```
    The lookup for scripts.
    
    Since:
    
    2.4
  - SYSTEM_PROPERTIES
```
public static final DefaultLookups SYSTEM_PROPERTIES
```
    The lookup for system properties.
  - URL
```
public static final DefaultLookups URL
```
    The lookup for URLs.
    
    Since:
    
    2.4
  - URL_DECODER
```
public static final DefaultLookups URL_DECODER
```
    The lookup for URL decoding.
    
    Since:
    
    2.4
  - URL_ENCODER
```
public static final DefaultLookups URL_ENCODER
```
    The lookup for URL decoding.
    
    Since:
    
    2.4
  - XML
```
public static final DefaultLookups XML
```
    The lookup for URL decoding.
    
    Since:
    
    2.4
- Method Detail
  - values
```
public static DefaultLookups[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (DefaultLookups c : DefaultLookups.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static DefaultLookups valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - getLookup
```
public Lookup getLookup()
```
    Returns the standard Lookup instance of this kind.
    
    Returns:
    
    the associated Lookup object
  - getPrefix
```
public String getPrefix()
```
    Returns the standard prefix for the lookup object of this kind.
    
    Returns:
    
    the prefix

Enum DefaultLookups

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

BASE64_DECODER

BASE64_ENCODER

CONST

DATE

DNS

ENVIRONMENT

FILE

JAVA

LOCAL_HOST

PROPERTIES

RESOURCE_BUNDLE

SCRIPT

SYSTEM_PROPERTIES

URL

URL_DECODER

URL_ENCODER

XML

Method Detail

values

valueOf

getLookup

getPrefix