public class RequirementQuery extends Query
Query.ForEachQueryNode
Constructor and Description |
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RequirementQuery()
An empty default constructor.
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Modifier and Type | Method and Description |
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Object |
clone()
Deep copy this Query object
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boolean |
getRequired()
Returns True if the subquery is REQUIRED to exist, or
false if it REQUIRED to NOT exit.
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void |
getTermsOf(Class<? extends Query> c,
List<Query> alist,
boolean req)
Returns all the query terms, in subqueries that
are instances of a given class.
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boolean |
obtainControls(Set<String> allowed,
Map<String,String> controls)
This object cannot contain any controls,
so this method will always return false.
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void |
obtainQueryTerms(MatchingQueryTerms terms)
Stores the terms of the query in the given structure, which
is used for matching documents to the query.
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String |
parseTree()
Returns the parse tree for the query as a string
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void |
setRequired(boolean needed)
Sets whether the query is required or not.
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String |
toString()
Returns a string representation of the query.
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apply, applyTermPipeline, getTerms, obtainAllOf, obtainQueryTerms, setChild
public void setRequired(boolean needed)
needed
- boolean indicates whether the query is required or not.public boolean getRequired()
public String toString()
public void obtainQueryTerms(MatchingQueryTerms terms)
obtainQueryTerms
in class Query
terms
- MatchingQueryTerms the structure that holds the query
terms for matching to documents.public boolean obtainControls(Set<String> allowed, Map<String,String> controls)
obtainControls
in class Query
public void getTermsOf(Class<? extends Query> c, List<Query> alist, boolean req)
getTermsOf
in class Query
c
- Class a class of queries.alist
- ArrayList the list of query terms.req
- boolean indicates whether the subqueries
are required or not.Terrier 4.0. Copyright © 2004-2014 University of Glasgow