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add EmptyIndex and IndexView.empty()
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package org.jboss.jandex; | ||
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import java.util.Collection; | ||
import java.util.Collections; | ||
import java.util.Set; | ||
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/** | ||
* Immutable empty index; that is, an index that doesn't contain any class. All methods return either | ||
* an empty collection, or {@code null}. | ||
* | ||
* @since 3.2.0 | ||
*/ | ||
public final class EmptyIndex implements IndexView { | ||
static final EmptyIndex INSTANCE = new EmptyIndex(); | ||
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private EmptyIndex() { | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getKnownClasses() { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public ClassInfo getClassByName(DotName className) { | ||
return null; | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getKnownDirectSubclasses(DotName className) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getAllKnownSubclasses(DotName className) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getKnownDirectSubinterfaces(DotName interfaceName) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getAllKnownSubinterfaces(DotName interfaceName) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getKnownDirectImplementors(DotName interfaceName) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getAllKnownImplementors(DotName interfaceName) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<AnnotationInstance> getAnnotations(DotName annotationName) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<AnnotationInstance> getAnnotationsWithRepeatable(DotName annotationName, IndexView index) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<ModuleInfo> getKnownModules() { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public ModuleInfo getModuleByName(DotName moduleName) { | ||
return null; | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getKnownUsers(DotName className) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Collection<ClassInfo> getClassesInPackage(DotName packageName) { | ||
return Collections.emptySet(); | ||
} | ||
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@Override | ||
public Set<DotName> getSubpackages(DotName packageName) { | ||
return Collections.emptySet(); | ||
} | ||
} |
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