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>, 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 and Description
static class	Slice.State The slice's state.

Field Summary

Fields

Modifier and Type	Field and Description
String	collection
static String	LEADER
static String	PARENT
static String	RANGE
static String	REPLICAS

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

propMap, STORE_BASE_URL

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
Slice	copyWith(Replica modified) Make a copy with a modified replica
String	getCollection()
Replica	getLeader()
String	getName() Return slice name (shard id).
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()
void	write(JSONWriter jsonWriter)

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

collection

public final String collection

REPLICAS

public static final String REPLICAS

See Also:

Constant Field Values

RANGE

public static final String RANGE

See Also:

Constant Field Values

LEADER

public static final String LEADER

See Also:

Constant Field Values

PARENT

public static final String PARENT

See Also:

Constant Field Values

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()

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

write

public void write(JSONWriter jsonWriter)

Specified by:

write in interface JSONWriter.Writable

Overrides:

write in class ZkNodeProps