Package org.apache.lucene.index
Class CompositeReaderContext
- java.lang.Object
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- org.apache.lucene.index.IndexReaderContext
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- org.apache.lucene.index.CompositeReaderContext
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public final class CompositeReaderContext extends IndexReaderContext
IndexReaderContextforCompositeReaderinstance.
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Field Summary
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Fields inherited from class org.apache.lucene.index.IndexReaderContext
docBaseInParent, isTopLevel, ordInParent, parent
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description List<IndexReaderContext>children()Returns the context's children iff this context is a composite context otherwisenull.List<LeafReaderContext>leaves()Returns the context's leaves if this context is a top-level context.CompositeReaderreader()Returns theIndexReader, this context represents.-
Methods inherited from class org.apache.lucene.index.IndexReaderContext
id
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Method Detail
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leaves
public List<LeafReaderContext> leaves() throws UnsupportedOperationException
Description copied from class:IndexReaderContextReturns the context's leaves if this context is a top-level context. For convenience, if this is anLeafReaderContextthis returns itself as the only leaf, and it will never return a null value.Note: this is convenience method since leaves can always be obtained by walking the context tree using
IndexReaderContext.children().- Specified by:
leavesin classIndexReaderContext- Throws:
UnsupportedOperationException- if this is not a top-level context.- See Also:
IndexReaderContext.children()
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children
public List<IndexReaderContext> children()
Description copied from class:IndexReaderContextReturns the context's children iff this context is a composite context otherwisenull.- Specified by:
childrenin classIndexReaderContext
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reader
public CompositeReader reader()
Description copied from class:IndexReaderContextReturns theIndexReader, this context represents.- Specified by:
readerin classIndexReaderContext
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