Package org.apache.solr.common.cloud

Class Slice

java.lang.Object

org.apache.solr.common.cloud.ZkNodeProps

org.apache.solr.common.cloud.Slice

All Implemented Interfaces:

Iterable<Replica>, MapSerializable, MapWriter, NavigableObject, org.noggit.JSONWriter.Writable

public class Slice
extends ZkNodeProps
implements Iterable<Replica>

A Slice contains immutable information about a logical shard (all replicas that share the same shard id).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Slice.SliceStateProps	JSON properties related to a slice's state.
static class	Slice.State	The slice's state.

Nested classes/interfaces inherited from interface org.apache.solr.common.MapWriter

MapWriter.EntryWriter

Field Summary

Fields

Modifier and Type	Field	Description
String	collection

Fields inherited from class org.apache.solr.common.cloud.ZkNodeProps

propMap

Fields inherited from interface org.apache.solr.common.MapWriter

EMPTY

Constructor Summary

Constructors

Constructor	Description
Slice(String name, Map<String,Replica> replicas, Map<String,Object> props, String collection)

Method Summary

Modifier and Type	Method	Description
Slice	copyWith(Replica modified)	Make a copy with a modified replica
String	getCollection()
Replica	getLeader()
String	getName()	Return slice name (shard id).
int	getNumLeaderReplicas()
String	getParent()
DocRouter.Range	getRange()
Replica	getReplica(String replicaName)
Set<String>	getReplicaNames()
Collection<Replica>	getReplicas()	Gets the list of all replicas for this slice.
List<Replica>	getReplicas(EnumSet<Replica.Type> s)	Gets the list of replicas that have a type present in s
List<Replica>	getReplicas(Predicate<Replica> pred)	Gets all replicas that match a predicate
Map<String,Replica>	getReplicasCopy()
Map<String,Replica>	getReplicasMap()	Get the map of coreNodeName to replicas for this slice.
Map<String,RoutingRule>	getRoutingRules()
Slice.State	getState()
Iterator<Replica>	iterator()
static Map<String,Slice>	loadAllFromMap(String collection, Map<String,Object> genericSlices)	Loads multiple slices into a Map from a generic Map that probably came from deserialized JSON.
String	toString()

Methods inherited from class org.apache.solr.common.cloud.ZkNodeProps

containsKey, equals, fromKeyVals, get, getBool, getInt, getProperties, getStr, getStr, hashCode, keySet, load, plus, plus, shallowCopy, writeMap

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.apache.solr.common.MapWriter

append, jsonStr, toMap, write

Methods inherited from interface org.apache.solr.common.NavigableObject

_forEachEntry, _forEachEntry, _forEachEntry, _get, _get, _getStr, _getStr, _size

Field Detail

collection

public final String collection

Constructor Detail

Slice

public Slice(String name,
             Map<String,Replica> replicas,
             Map<String,Object> props,
             String collection)

Parameters:

name - The name of the slice

replicas - The replicas of the slice. This is used directly and a copy is not made. If null, replicas will be constructed from props.

props - The properties of the slice - a shallow copy will always be made.

Method Detail

loadAllFromMap

public static Map<String,Slice> loadAllFromMap(String collection,
                                                     Map<String,Object> genericSlices)

Loads multiple slices into a Map from a generic Map that probably came from deserialized JSON.

iterator

public Iterator<Replica> iterator()

Specified by:

iterator in interface Iterable<Replica>

copyWith

public Slice copyWith(Replica modified)

Make a copy with a modified replica

getCollection

public String getCollection()

getName

public String getName()

Return slice name (shard id).

getReplicas

public Collection<Replica> getReplicas()

Gets the list of all replicas for this slice.

getReplicaNames

public Set<String> getReplicaNames()

getReplicas

public List<Replica> getReplicas(Predicate<Replica> pred)

Gets all replicas that match a predicate

getReplicas

public List<Replica> getReplicas(EnumSet<Replica.Type> s)

Gets the list of replicas that have a type present in s

getReplicasMap

public Map<String,Replica> getReplicasMap()

Get the map of coreNodeName to replicas for this slice.

getReplicasCopy

public Map<String,Replica> getReplicasCopy()

getLeader

public Replica getLeader()

getNumLeaderReplicas

public int getNumLeaderReplicas()

getReplica

public Replica getReplica(String replicaName)

getRange

public DocRouter.Range getRange()

getState

public Slice.State getState()

getParent

public String getParent()

getRoutingRules

public Map<String,RoutingRule> getRoutingRules()

toString

public String toString()

Overrides:

toString in class ZkNodeProps