Class AbstractDelegatingValueSource
- java.lang.Object
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- org.codehaus.plexus.interpolation.AbstractDelegatingValueSource
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- All Implemented Interfaces:
ValueSource
- Direct Known Subclasses:
PrefixedObjectValueSource
,PrefixedPropertiesValueSource
public abstract class AbstractDelegatingValueSource extends java.lang.Object implements ValueSource
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Constructor Summary
Constructors Modifier Constructor Description protected
AbstractDelegatingValueSource(ValueSource delegate)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clearFeedback()
Clear the feedback accumulated by a prior interpolation run.protected ValueSource
getDelegate()
java.util.List
getFeedback()
Return the feedback about resolution failures for a particular expression.java.lang.Object
getValue(java.lang.String expression)
java.lang.Object
getValue(java.lang.String expression, java.lang.String delimiterStart, java.lang.String delimiterEnd)
Returns a value resolved from an expression.
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Constructor Detail
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AbstractDelegatingValueSource
protected AbstractDelegatingValueSource(ValueSource delegate)
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Method Detail
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getDelegate
protected ValueSource getDelegate()
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getValue
public java.lang.Object getValue(java.lang.String expression, java.lang.String delimiterStart, java.lang.String delimiterEnd)
Description copied from interface:ValueSource
Returns a value resolved from an expression. The return value is recursively resolved viaBasicInterpolator.interpolate(String)
, i.e. might contain expressions as well.- Specified by:
getValue
in interfaceValueSource
- Parameters:
expression
- The string expression.delimiterStart
- A valid start delimiter of the expression to be used with the callingInterpolator
(by default${
).delimiterEnd
- A valid end delimiter of the expression to be used with the callingInterpolator
(by default}
).- Returns:
- the value related to the expression, or
null
if not found. This value might contain other expressions separated byexpressionStartDelimiter
andexpressionEndDelimiter
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getValue
public java.lang.Object getValue(java.lang.String expression)
- Specified by:
getValue
in interfaceValueSource
- Parameters:
expression
- The string expression.- Returns:
- the value related to the expression, or
null
if not found. - See Also:
ValueSource.getValue(String, String, String)
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clearFeedback
public void clearFeedback()
Description copied from interface:ValueSource
Clear the feedback accumulated by a prior interpolation run.- Specified by:
clearFeedback
in interfaceValueSource
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getFeedback
public java.util.List getFeedback()
Description copied from interface:ValueSource
Return the feedback about resolution failures for a particular expression.- Specified by:
getFeedback
in interfaceValueSource
- Returns:
- a combination of String and Throwable instances, where strings related to throwables are listed first.
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