org.openanzo.model.impl
Class AnzoValueFactory

java.lang.Object
  org.openanzo.model.impl.AnzoValueFactory

All Implemented Interfaces:

org.openrdf.model.ValueFactory

public class AnzoValueFactory
extends java.lang.Object
implements org.openrdf.model.ValueFactory

Anzo implementation of ValueFactory

Contains weakHashMaps for caching uris, literals, typedLiterals, and bNodes.

Has a createTypedLiteral method, which sets datatype for literals on creation

Uses random uuid for bnodes to prevent clashes

Author:

Matthew Roy ( mroy@cambridgesemantics.com )

Constructor Summary

AnzoValueFactory()

Method Summary

org.openrdf.model.BNode	createBNode()
org.openrdf.model.BNode	createBNode(java.lang.String id)
org.openrdf.model.Literal	createLiteral(boolean arg0)
org.openrdf.model.Literal	createLiteral(byte arg0)
org.openrdf.model.Literal	createLiteral(double arg0)
org.openrdf.model.Literal	createLiteral(float arg0)
org.openrdf.model.Literal	createLiteral(int arg0)
org.openrdf.model.Literal	createLiteral(long arg0)
org.openrdf.model.Literal	createLiteral(short arg0)
org.openrdf.model.Literal	createLiteral(java.lang.String label)
org.openrdf.model.Literal	createLiteral(java.lang.String label, java.lang.String lang)
org.openrdf.model.Literal	createLiteral(java.lang.String label, org.openrdf.model.URI dataType)
org.openrdf.model.Literal	createLiteral(javax.xml.datatype.XMLGregorianCalendar arg0)
org.openrdf.model.Statement	createMatchStatement(org.openrdf.model.Resource subj, org.openrdf.model.URI prop, org.openrdf.model.Value obj) Create a statement, replacing any null values with Constants.ANY_URI
org.openrdf.model.Statement	createMatchStatement(org.openrdf.model.Resource subj, org.openrdf.model.URI prop, org.openrdf.model.Value obj, org.openrdf.model.Resource context) Create a statement, replacing any null values with Constants.ANY_URI
org.openrdf.model.Resource	createResource(java.lang.String value) Create either a BNode or URI based on contents of value
org.openrdf.model.Statement	createStatement(org.openrdf.model.Resource subj, org.openrdf.model.URI prop, org.openrdf.model.Value obj)
org.openrdf.model.Statement	createStatement(org.openrdf.model.Resource subj, org.openrdf.model.URI prop, org.openrdf.model.Value obj, org.openrdf.model.Resource context)
org.openrdf.model.Literal	createTypedLiteral(java.lang.Object value) Create a literal with its datatype set,based on type of object passed in.
org.openrdf.model.URI	createURI(java.lang.String uri) Create URI based on uri value.
org.openrdf.model.URI	createURI(java.lang.String namespace, java.lang.String uri)

Methods inherited from class java.lang.Object

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

Constructor Detail

AnzoValueFactory

public AnzoValueFactory()

Method Detail

createBNode

public org.openrdf.model.BNode createBNode()

Specified by:

createBNode in interface org.openrdf.model.ValueFactory

createBNode

public org.openrdf.model.BNode createBNode(java.lang.String id)

Specified by:

createBNode in interface org.openrdf.model.ValueFactory

createResource

public org.openrdf.model.Resource createResource(java.lang.String value)

Create either a BNode or URI based on contents of value

Parameters:

value - Value to convert to resource

Returns:

Value converted to URI

createLiteral

public org.openrdf.model.Literal createLiteral(java.lang.String label)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(java.lang.String label,
                                               java.lang.String lang)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(java.lang.String label,
                                               org.openrdf.model.URI dataType)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createTypedLiteral

public org.openrdf.model.Literal createTypedLiteral(java.lang.Object value)

Create a literal with its datatype set,based on type of object passed in. Defaults to plain literal with no type if object not known, with a text value of the objects.toString() value.

Parameters:

value - Value to convert to literal

Returns:

Literal representation of value

createStatement

public org.openrdf.model.Statement createStatement(org.openrdf.model.Resource subj,
                                                   org.openrdf.model.URI prop,
                                                   org.openrdf.model.Value obj)

Specified by:

createStatement in interface org.openrdf.model.ValueFactory

createStatement

public org.openrdf.model.Statement createStatement(org.openrdf.model.Resource subj,
                                                   org.openrdf.model.URI prop,
                                                   org.openrdf.model.Value obj,
                                                   org.openrdf.model.Resource context)

Specified by:

createStatement in interface org.openrdf.model.ValueFactory

createMatchStatement

public org.openrdf.model.Statement createMatchStatement(org.openrdf.model.Resource subj,
                                                        org.openrdf.model.URI prop,
                                                        org.openrdf.model.Value obj,
                                                        org.openrdf.model.Resource context)

Create a statement, replacing any null values with Constants.ANY_URI

Parameters:

subj - Subject of statement, or null which is replaced with ANY_URI

prop - Property of statement, or null which is replaced with ANY_URI

obj - Object of statement, or null which is replaced with ANY_URI

context - Context of statement, or null which is replaced with ANY_URI

Returns:

Statement with nulls replaced with ANY_URI

createMatchStatement

public org.openrdf.model.Statement createMatchStatement(org.openrdf.model.Resource subj,
                                                        org.openrdf.model.URI prop,
                                                        org.openrdf.model.Value obj)

Create a statement, replacing any null values with Constants.ANY_URI

Parameters:

subj - Subject of statement, or null which is replaced with ANY_URI

prop - Property of statement, or null which is replaced with ANY_URI

obj - Object of statement, or null which is replaced with ANY_URI

Returns:

Statement with nulls replaced with ANY_URI

createURI

public org.openrdf.model.URI createURI(java.lang.String uri)

Create URI based on uri value.

Specified by:

createURI in interface org.openrdf.model.ValueFactory

Parameters:

uri - string representation of URI

Returns:

URI representation of passed in value

Throws:

AnzoRuntimeException - if there are any spaces in the URI

createURI

public org.openrdf.model.URI createURI(java.lang.String namespace,
                                       java.lang.String uri)

Specified by:

createURI in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(boolean arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(byte arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(short arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(int arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(long arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(float arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(double arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory

createLiteral

public org.openrdf.model.Literal createLiteral(javax.xml.datatype.XMLGregorianCalendar arg0)

Specified by:

createLiteral in interface org.openrdf.model.ValueFactory