Package org.codehaus.plexus.interpolation

Class PrefixedPropertiesValueSource

java.lang.Object

org.codehaus.plexus.interpolation.AbstractDelegatingValueSource

org.codehaus.plexus.interpolation.PrefixedPropertiesValueSource

All Implemented Interfaces:

QueryEnabledValueSource, ValueSource

public class PrefixedPropertiesValueSource
extends AbstractDelegatingValueSource
implements QueryEnabledValueSource

Legacy support. Allow trimming one of a set of expression prefixes, the lookup the remaining expression as a literal key from the wrapped properties instance.

This is just a convenience implementation to provide a shorthand for constructing the properties value source and then wrapping it with a prefixed value-source wrapper.

Constructor Summary

Constructors

Constructor	Description
PrefixedPropertiesValueSource(String prefix, Properties properties)	Wrap the specified properties file with a new PropertiesBasedValueSource, then wrap that source with a new PrefixedValueSourceWrapper that uses the specified expression prefix.
PrefixedPropertiesValueSource(List<String> possiblePrefixes, Properties properties, boolean allowUnprefixedExpressions)	Wrap the specified properties file with a new PropertiesBasedValueSource, then wrap that source with a new PrefixedValueSourceWrapper that uses the specified expression-prefix list.

Method Summary

Modifier and Type	Method	Description
String	getLastExpression()

Methods inherited from class org.codehaus.plexus.interpolation.AbstractDelegatingValueSource

clearFeedback, getDelegate, getFeedback, getValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.codehaus.plexus.interpolation.ValueSource

clearFeedback, getFeedback, getValue

Constructor Details

PrefixedPropertiesValueSource

public PrefixedPropertiesValueSource(String prefix,
 Properties properties)

Wrap the specified properties file with a new PropertiesBasedValueSource, then wrap that source with a new PrefixedValueSourceWrapper that uses the specified expression prefix. Finally, set this wrapper source as a delegate for this instance to use.

Parameters:

prefix - The expression prefix to trim

properties - The properties instance to wrap

PrefixedPropertiesValueSource

public PrefixedPropertiesValueSource(List<String> possiblePrefixes,
 Properties properties,
 boolean allowUnprefixedExpressions)

Wrap the specified properties file with a new PropertiesBasedValueSource, then wrap that source with a new PrefixedValueSourceWrapper that uses the specified expression-prefix list. Finally, set this wrapper source as a delegate for this instance to use.

Parameters:

possiblePrefixes - The expression-prefix list to trim

properties - The properties instance to wrap

allowUnprefixedExpressions - allow unprefixed expressions or not.

Method Details

getLastExpression

public String getLastExpression()

Specified by:

getLastExpression in interface QueryEnabledValueSource

Returns:

the most recent expression processed by this value source, or null.