Package org.eclipse.rdf4j.query.resultio
Class BooleanQueryResultWriterRegistry.BooleanQueryResultWriterRegistryHolder
java.lang.Object
org.eclipse.rdf4j.query.resultio.BooleanQueryResultWriterRegistry.BooleanQueryResultWriterRegistryHolder
- Enclosing class:
BooleanQueryResultWriterRegistry
private static class BooleanQueryResultWriterRegistry.BooleanQueryResultWriterRegistryHolder
extends Object
Internal helper class to avoid continuous synchronized checking.
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Field Summary
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Field Details
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instance
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Constructor Details
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BooleanQueryResultWriterRegistryHolder
private BooleanQueryResultWriterRegistryHolder()
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