Package org.apache.lucene.facet.taxonomy
Class ParallelTaxonomyArrays
java.lang.Object
org.apache.lucene.facet.taxonomy.ParallelTaxonomyArrays
Returns 3 arrays for traversing the taxonomy:
parents
:parents[i]
denotes the parent of category ordinali
.children
:children[i]
denotes a child of category ordinali
.siblings
:siblings[i]
denotes the sibling of category ordinali
.
children[0]
(ordinal 0 is
reserved for ROOT), and then depends if you want to do DFS or BFS, you call
children[children[0]]
or siblings[children[0]]
and so forth, respectively.
NOTE: you are not expected to modify the values of the arrays, since the arrays are shared with other threads.
- WARNING: This API is experimental and might change in incompatible ways in the next release.
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionabstract int[]
children()
Returns the children array, wherechildren[i]
denotes a child of category ordinali
.abstract int[]
parents()
Returns the parents array, whereparents[i]
denotes the parent of category ordinali
.abstract int[]
siblings()
Returns the siblings array, wheresiblings[i]
denotes the sibling of category ordinali
.
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Constructor Details
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ParallelTaxonomyArrays
public ParallelTaxonomyArrays()Sole constructor.
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Method Details
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parents
public abstract int[] parents()Returns the parents array, whereparents[i]
denotes the parent of category ordinali
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children
public abstract int[] children()Returns the children array, wherechildren[i]
denotes a child of category ordinali
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siblings
public abstract int[] siblings()Returns the siblings array, wheresiblings[i]
denotes the sibling of category ordinali
.
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