Class PrefixedValueSourceWrapper
- java.lang.Object
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- org.codehaus.plexus.interpolation.fixed.PrefixedValueSourceWrapper
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- All Implemented Interfaces:
FixedValueSource
public class PrefixedValueSourceWrapper extends java.lang.Object implements FixedValueSource
FixedValueSource
implementation which simply wraps another value source, and trims any of a set of possible expression prefixes before delegating the modified expression to be resolved by the real value source.
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Field Summary
Fields Modifier and Type Field Description private boolean
allowUnprefixedExpressions
private java.lang.String
lastExpression
private java.lang.String[]
possiblePrefixes
private FixedValueSource
valueSource
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Constructor Summary
Constructors Constructor Description PrefixedValueSourceWrapper(FixedValueSource valueSource, java.lang.String prefix)
Wrap the given value source, but first trim the given prefix from any expressions before they are passed along for resolution.PrefixedValueSourceWrapper(FixedValueSource valueSource, java.lang.String prefix, boolean allowUnprefixedExpressions)
Wrap the given value source, but first trim the given prefix from any expressions before they are passed along for resolution.PrefixedValueSourceWrapper(FixedValueSource valueSource, java.util.List<java.lang.String> possiblePrefixes)
Wrap the given value source, but first trim one of the given prefixes from any expressions before they are passed along for resolution.PrefixedValueSourceWrapper(FixedValueSource valueSource, java.util.List<java.lang.String> possiblePrefixes, boolean allowUnprefixedExpressions)
Wrap the given value source, but first trim one of the given prefixes from any expressions before they are passed along for resolution.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
getValue(java.lang.String expression, InterpolationState interpolationState)
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Field Detail
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valueSource
private final FixedValueSource valueSource
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possiblePrefixes
private final java.lang.String[] possiblePrefixes
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allowUnprefixedExpressions
private boolean allowUnprefixedExpressions
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lastExpression
private java.lang.String lastExpression
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Constructor Detail
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PrefixedValueSourceWrapper
public PrefixedValueSourceWrapper(FixedValueSource valueSource, java.lang.String prefix)
Wrap the given value source, but first trim the given prefix from any expressions before they are passed along for resolution. If an expression doesn't start with the given prefix, do not resolve it.- Parameters:
valueSource
- TheValueSource
to wrap.prefix
- The expression prefix to trim.
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PrefixedValueSourceWrapper
public PrefixedValueSourceWrapper(FixedValueSource valueSource, java.lang.String prefix, boolean allowUnprefixedExpressions)
Wrap the given value source, but first trim the given prefix from any expressions before they are passed along for resolution. If an expression doesn't start with the given prefix and the allowUnprefixedExpressions flag is set to true, simply pass the expression through to the nested value source unchanged. If this flag is false, only allow resolution of those expressions that start with the specified prefix.- Parameters:
valueSource
- TheValueSource
to wrap.prefix
- The expression prefix to trim.allowUnprefixedExpressions
- Flag telling the wrapper whether to continue resolving expressions that don't start with the prefix it tracks.
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PrefixedValueSourceWrapper
public PrefixedValueSourceWrapper(FixedValueSource valueSource, java.util.List<java.lang.String> possiblePrefixes)
Wrap the given value source, but first trim one of the given prefixes from any expressions before they are passed along for resolution. If an expression doesn't start with one of the given prefixes, do not resolve it.- Parameters:
valueSource
- TheValueSource
to wrap.possiblePrefixes
- The List of expression prefixes to trim.
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PrefixedValueSourceWrapper
public PrefixedValueSourceWrapper(FixedValueSource valueSource, java.util.List<java.lang.String> possiblePrefixes, boolean allowUnprefixedExpressions)
Wrap the given value source, but first trim one of the given prefixes from any expressions before they are passed along for resolution. If an expression doesn't start with the given prefix and the allowUnprefixedExpressions flag is set to true, simply pass the expression through to the nested value source unchanged. If this flag is false, only allow resolution of those expressions that start with the specified prefix.- Parameters:
valueSource
- TheValueSource
to wrap.possiblePrefixes
- The List of expression prefixes to trim.allowUnprefixedExpressions
- Flag telling the wrapper whether to continue resolving expressions that don't start with one of the prefixes it tracks.
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Method Detail
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getValue
public java.lang.Object getValue(java.lang.String expression, InterpolationState interpolationState)
- Specified by:
getValue
in interfaceFixedValueSource
- Parameters:
expression
- The expression.interpolationState
-InterpolationState
.- Returns:
- the value related to the expression, or null if not found (not available from this source)
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