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
IndexReaderContext
forCompositeReader
instance.
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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 java.util.List<IndexReaderContext>
children()
Returns the context's children iff this context is a composite context otherwisenull
.java.util.List<AtomicReaderContext>
leaves()
Returns the context's leaves if this context is a top-level context.CompositeReader
reader()
Returns theIndexReader
, this context represents.
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Method Detail
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leaves
public java.util.List<AtomicReaderContext> leaves() throws java.lang.UnsupportedOperationException
Description copied from class:IndexReaderContext
Returns the context's leaves if this context is a top-level context. For convenience, if this is anAtomicReaderContext
this returns itself as the only leaf.Note: this is convenience method since leaves can always be obtained by walking the context tree using
IndexReaderContext.children()
.- Specified by:
leaves
in classIndexReaderContext
- Throws:
java.lang.UnsupportedOperationException
- if this is not a top-level context.- See Also:
IndexReaderContext.children()
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children
public java.util.List<IndexReaderContext> children()
Description copied from class:IndexReaderContext
Returns the context's children iff this context is a composite context otherwisenull
.- Specified by:
children
in classIndexReaderContext
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reader
public CompositeReader reader()
Description copied from class:IndexReaderContext
Returns theIndexReader
, this context represents.- Specified by:
reader
in classIndexReaderContext
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