Class FeatureList
- java.lang.Object
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- com.yahoo.searchlib.rankingexpression.FeatureList
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- All Implemented Interfaces:
java.lang.Iterable<ReferenceNode>
@Beta public class FeatureList extends java.lang.Object implements java.lang.Iterable<ReferenceNode>
Encapsulates the production rule 'featureList()' int the RankingExpressionParser.- Author:
- Simon Thoresen Hult
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Constructor Summary
Constructors Constructor Description FeatureList(java.io.File file)
Creates a new feature list by reading the content of a file.FeatureList(java.io.Reader reader)
Creates a new feature list by consuming from a reader object.FeatureList(java.lang.String list)
Creates a new feature list by parsing a string.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(java.lang.Object obj)
ReferenceNode
get(int i)
Returns the feature at the given index.int
hashCode()
java.util.Iterator<ReferenceNode>
iterator()
int
size()
Returns the number of features in this list.java.lang.String
toString()
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Constructor Detail
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FeatureList
public FeatureList(java.io.Reader reader) throws ParseException
Creates a new feature list by consuming from a reader object.- Parameters:
reader
- The reader that contains the string to parse.- Throws:
ParseException
- Thrown if the string could not be parsed.
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FeatureList
public FeatureList(java.lang.String list) throws ParseException
Creates a new feature list by parsing a string.- Parameters:
list
- The string to parse.- Throws:
ParseException
- Thrown if the string could not be parsed.
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FeatureList
public FeatureList(java.io.File file) throws ParseException, java.io.FileNotFoundException
Creates a new feature list by reading the content of a file.- Parameters:
file
- The file whose content to parse.- Throws:
ParseException
- Thrown if the string could not be parsed.java.io.FileNotFoundException
- Thrown if the file specified could not be found.
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Method Detail
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size
public int size()
Returns the number of features in this list.- Returns:
- The size.
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get
public ReferenceNode get(int i)
Returns the feature at the given index.- Parameters:
i
- the index of the feature to return.- Returns:
- the feature at the given index.
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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equals
public boolean equals(java.lang.Object obj)
- Overrides:
equals
in classjava.lang.Object
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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iterator
public java.util.Iterator<ReferenceNode> iterator()
- Specified by:
iterator
in interfacejava.lang.Iterable<ReferenceNode>
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