org.codehaus.plexus.interpolation
Class PrefixedPropertiesValueSource

java.lang.Object
  org.codehaus.plexus.interpolation.PrefixedPropertiesValueSource

All Implemented Interfaces:

QueryEnabledValueSource, ValueSource

public class PrefixedPropertiesValueSource

extends java.lang.Object

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

PrefixedPropertiesValueSource(java.util.List possiblePrefixes, java.util.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.

PrefixedPropertiesValueSource(java.lang.String prefix, java.util.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.

Method Summary

void	clearFeedback() {@inheritDoc}
java.util.List	getFeedback() {@inheritDoc}
java.lang.String	getLastExpression()
java.lang.Object	getValue(java.lang.String expression) Delegates to PrefixedValueSourceWrapper.getValue(String) for the instance wrapping the instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrefixedPropertiesValueSource

public PrefixedPropertiesValueSource(java.lang.String prefix,
                                     java.util.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(java.util.List possiblePrefixes,
                                     java.util.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

Method Detail

clearFeedback

public void clearFeedback()

{@inheritDoc}

getFeedback

public java.util.List getFeedback()

{@inheritDoc}

getLastExpression

public java.lang.String getLastExpression()

Specified by:

getLastExpression in interface QueryEnabledValueSource

Returns:

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

getValue

public java.lang.Object getValue(java.lang.String expression)

Delegates to PrefixedValueSourceWrapper.getValue(String) for the instance wrapping the instance.

Specified by:

getValue in interface ValueSource

Returns:

the value related to the expression, or null if not found.