DBIDRouter (Alfresco Solr Search 2.0.2-RC1 API)

java.lang.Object
- org.alfresco.solr.tracker.DBIDRouter

All Implemented Interfaces:

DocRouter
```
public class DBIDRouter
extends java.lang.Object
implements DocRouter
```
DBID murmur hash based document router. This method is available in Alfresco Search Services 1.0 and later versions and is the default sharding option in Solr 6. Nodes are evenly distributed over the shards at random based on the murmur hash of the DBID. The access control information is duplicated in each shard. The distribution of nodes over each shard is very even and shards grow at the same rate. Also, this is the fall back method if any other sharding information is unavailable. To use this method, when creating a shard add a new configuration property:
- shard.method=DB_ID
- shard.instance=<shard.instance>
- shard.count=<shard.count>
Author:

Joel

See Also:

Search Services sharding methods

Constructor Summary

Constructors
Constructor Description

DBIDRouter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Boolean`	`routeAcl(int shardCount, int shardInstance, org.alfresco.solr.client.Acl acl)`	Checks if the incoming ACL document must be indexed on this shard.
`java.lang.Boolean`	`routeNode(int shardCount, int shardInstance, org.alfresco.solr.client.Node node)`	Checks if the incoming Node must be indexed on this shard.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.alfresco.solr.tracker.DocRouter
getProperties

- Constructor Detail
  - DBIDRouter
```
public DBIDRouter()
```
- Method Detail
  - routeAcl
```
public java.lang.Boolean routeAcl(int shardCount,
                                  int shardInstance,
                                  org.alfresco.solr.client.Acl acl)
```
    Description copied from interface: DocRouter
    
    Checks if the incoming ACL document must be indexed on this shard.
    
    Specified by:
    
    routeAcl in interface DocRouter
    
    Parameters:
    
    shardCount - the total shard count.
    
    shardInstance - the owning shard instance (i.e. instance number).
    
    acl - the ACL.
    
    Returns:
    
    true if the ACL must be indexed in the shard which owns this DocRouter instance, false otherwise.
  - routeNode
```
public java.lang.Boolean routeNode(int shardCount,
                                   int shardInstance,
                                   org.alfresco.solr.client.Node node)
```
    Description copied from interface: DocRouter
    
    Checks if the incoming Node must be indexed on this shard.
    
    Specified by:
    
    routeNode in interface DocRouter
    
    Parameters:
    
    shardCount - the total shard count.
    
    shardInstance - the owning shard instance (i.e. instance number).
    
    node - the Node instance.
    
    Returns:
    
    true if the Node instance must be indexed in the shard which owns this DocRouter instance, false otherwise.