Package org.apache.tools.ant.filters
Class ExpandProperties
- java.lang.Object
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- java.io.Reader
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- java.io.FilterReader
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- org.apache.tools.ant.filters.BaseFilterReader
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- org.apache.tools.ant.filters.ExpandProperties
 
 
 
 
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- All Implemented Interfaces:
- java.io.Closeable,- java.lang.AutoCloseable,- java.lang.Readable,- ChainableReader
 
 public final class ExpandProperties extends BaseFilterReader implements ChainableReader Expands Ant properties, if any, in the data.Example: <expandproperties/> Or:<filterreader classname="org.apache.tools.ant.filters.ExpandProperties"/>
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Constructor SummaryConstructors Constructor Description ExpandProperties()Constructor for "dummy" instances.ExpandProperties(java.io.Reader in)Creates a new filtered reader.
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Method SummaryModifier and Type Method Description voidadd(PropertySet propertySet)Restrict the expanded properties using a PropertySet.java.io.Readerchain(java.io.Reader rdr)Creates a new ExpandProperties filter using the passed in Reader for instantiation.intread()Returns the next character in the filtered stream.- 
Methods inherited from class org.apache.tools.ant.filters.BaseFilterReadergetInitialized, getProject, read, readFully, readLine, setInitialized, setProject, skip
 
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Constructor Detail- 
ExpandPropertiespublic ExpandProperties() Constructor for "dummy" instances.- See Also:
- BaseFilterReader()
 
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ExpandPropertiespublic ExpandProperties(java.io.Reader in) Creates a new filtered reader.- Parameters:
- in- A Reader object providing the underlying stream. Must not be- null.
 
 
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Method Detail- 
addpublic void add(PropertySet propertySet) Restrict the expanded properties using a PropertySet.- Parameters:
- propertySet- replacement lookup
 
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readpublic int read() throws java.io.IOExceptionReturns the next character in the filtered stream. The original stream is first read in fully, and the Ant properties are expanded. The results of this expansion are then queued so they can be read character-by-character.- Overrides:
- readin class- java.io.FilterReader
- Returns:
- the next character in the resulting stream, or -1 if the end of the resulting stream has been reached
- Throws:
- java.io.IOException- if the underlying stream throws an IOException during reading
 
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chainpublic java.io.Reader chain(java.io.Reader rdr) Creates a new ExpandProperties filter using the passed in Reader for instantiation.- Specified by:
- chainin interface- ChainableReader
- Parameters:
- rdr- A Reader object providing the underlying stream. Must not be- null.
- Returns:
- a new filter based on this configuration, but filtering the specified reader
 
 
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