org.openanzo.common.rdb.layout
Class NodeURILayout<T extends org.openrdf.model.Resource>

java.lang.Object
  org.openanzo.common.rdb.layout.NodeLayoutBase<T>
      org.openanzo.common.rdb.layout.NodeURILayout<T>

Type Parameters:

T - type of Resource being stored in this layout

All Implemented Interfaces:

INodeLayout<T>

public class NodeURILayout<T extends org.openrdf.model.Resource>
extends NodeLayoutBase<T>

Layout for Node_URI and Node_Blank. Based on NodeLayoutBase which enables long node support for uri types that provide a long table name.

Author:

Joe Betz, Stephen Evanchik

Constructor Summary

NodeURILayout(NodeType type, SQLCache sqlCache, Sequence sequence, java.lang.String sequenceName, java.lang.String longSequenceName, java.lang.String tableName, java.lang.String resourceTempTableName, java.lang.String idTempTableName, java.lang.String optimizationString)
Construct a layout to store Resources (URIs or BNodes) in a database

NodeURILayout(NodeType type, SQLCache sqlCache, Sequence sequence, java.lang.String sequenceName, java.lang.String longSequenceName, java.lang.String tableName, java.lang.String longTableName, java.lang.String resourceTempTableName, java.lang.String idTempTableName, int maxLength, java.lang.String optimizationString)
Construct a layout to store Resources (URIs or BNodes) in a database

Method Summary

T	convert(java.lang.String value, java.lang.Long modifiedId) Convert raw value from database into Node of appropriate type
T	fetchValue(java.lang.Long id) Fetches a nodes value from the database based on its long identifier and NodeType.
NodeType	getType()
java.util.Map<java.lang.Long,T>	resolveStoredIds(java.util.Set<java.lang.Long> ids) This method will determine which IDs in a list of given Ids are already stored in the database.
java.util.Map<T,java.lang.Long>	resolveStoredNodes(java.util.Set<T> nodes, boolean storeUnResolvedNodes) This method will determine which nodes in a list of given nodes are already stored in the database.
java.lang.Long	store(T n) Stores a node in the database

Methods inherited from class org.openanzo.common.rdb.layout.NodeLayoutBase

fetchId, getLongSequenceName, getSequenceName, isLong

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeURILayout

public NodeURILayout(NodeType type,
                     SQLCache sqlCache,
                     Sequence sequence,
                     java.lang.String sequenceName,
                     java.lang.String longSequenceName,
                     java.lang.String tableName,
                     java.lang.String resourceTempTableName,
                     java.lang.String idTempTableName,
                     java.lang.String optimizationString)

Construct a layout to store Resources (URIs or BNodes) in a database

Parameters:

type - Type of nodes this is storing

sqlCache - The interface to the SQL prepared statement cache

sequence - The sequence Object that is used to get IDs

sequenceName - The name of the sequence that is used to get IDs

longSequenceName - The name of the sequence that is used to get IDs for long objects

tableName - The name of the table where the nodes are stored

resourceTempTableName - The name of the temporary table used to bulk insert nodes

idTempTableName - The name of the temporary table used to bulk id resolution

optimizationString - Extra parameters added to queries for database specific optimizations

NodeURILayout

public NodeURILayout(NodeType type,
                     SQLCache sqlCache,
                     Sequence sequence,
                     java.lang.String sequenceName,
                     java.lang.String longSequenceName,
                     java.lang.String tableName,
                     java.lang.String longTableName,
                     java.lang.String resourceTempTableName,
                     java.lang.String idTempTableName,
                     int maxLength,
                     java.lang.String optimizationString)

Construct a layout to store Resources (URIs or BNodes) in a database

Parameters:

type - Type of nodes this is storing

sqlCache - The interface to the SQL prepared statement cache

sequence - The sequence Object that is used to get IDs

sequenceName - The name of the sequence that is used to get IDs

longSequenceName - The name of the sequence that is used to get IDs for long objects

tableName - The name of the table where the nodes are stored

longTableName - The name of the table where excessively long nodes are stored

resourceTempTableName - The name of the temporary table used to bulk insert nodes

idTempTableName - The name of the temporary table used to bulk id resolution

maxLength - The maximum length of a node's string representation before it is considered long

optimizationString - Extra parameters added to queries for database specific optimizations

Method Detail

store

public java.lang.Long store(T n)

Description copied from interface: INodeLayout

Stores a node in the database

Parameters:

n - The node to be stored

Returns:

The ID of the node stored

fetchValue

public T fetchValue(java.lang.Long id)

Description copied from interface: INodeLayout

Fetches a nodes value from the database based on its long identifier and NodeType.

Parameters:

id - The ID of the node to be found

Returns:

The node

convert

public T convert(java.lang.String value,
                 java.lang.Long modifiedId)

Description copied from interface: INodeLayout

Convert raw value from database into Node of appropriate type

Parameters:

value - raw value of node from database

modifiedId - for literal values

Returns:

converted Node of appropriate type

resolveStoredNodes

public java.util.Map<T,java.lang.Long> resolveStoredNodes(java.util.Set<T> nodes,
                                                          boolean storeUnResolvedNodes)

Description copied from interface: INodeLayout

This method will determine which nodes in a list of given nodes are already stored in the database. If storeUnresolvedNodes is true, then any node that is unresolved will be stored.

Parameters:

nodes - The nodes which need to be resolved to whether they are already stored or need to be stored.

storeUnResolvedNodes - Store nodes that are not already stored

Returns:

A Map of the nodes already stored in the database.

getType

public NodeType getType()

Returns:

type of Nodes this layout handles

resolveStoredIds

public java.util.Map<java.lang.Long,T> resolveStoredIds(java.util.Set<java.lang.Long> ids)

Description copied from interface: INodeLayout

This method will determine which IDs in a list of given Ids are already stored in the database.

Parameters:

ids - The ids which need to be resolved to whether they are already stored.

Returns:

A Map of the ids already stored in the database.