org.fcrepo.kernel.utils

Class NodePropertiesTools

java.lang.Object

org.fcrepo.kernel.utils.NodePropertiesTools

public class NodePropertiesTools
extends Object

Tools for replacing, appending and deleting JCR node properties

Author:

Chris Beer

Field Summary

Fields

Modifier and Type	Field and Description
static String	REFERENCE_PROPERTY_SUFFIX

Constructor Summary

Constructors

Constructor and Description
NodePropertiesTools()

Method Summary

Methods

Modifier and Type	Method and Description
void	appendOrReplaceNodeProperty(org.fcrepo.kernel.rdf.IdentifierTranslator subjects, javax.jcr.Node node, String propertyName, javax.jcr.Value newValue) Given a JCR node, property and value, either: - if the property is single-valued, replace the existing property with the new value - if the property is multivalued, append the new value to the property
int	getPropertyType(javax.jcr.Node node, String propertyName) Get the JCR property type ID for a given property name.
static String	getReferencePropertyName(String propertyName) When we add certain URI properties, we also want to leave a reference node
static boolean	isMultivaluedProperty(javax.jcr.Node node, String propertyName) Determine if a given JCR property name is single- or multi- valued.
void	removeNodeProperty(org.fcrepo.kernel.rdf.IdentifierTranslator subjects, javax.jcr.Node node, String propertyName, javax.jcr.Value valueToRemove) Given a JCR node, property and value, remove the value (if it exists) from the property, and remove the property if no values remove

Methods inherited from class java.lang.Object

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

Field Detail

REFERENCE_PROPERTY_SUFFIX

public static final String REFERENCE_PROPERTY_SUFFIX

See Also:

Constant Field Values

Constructor Detail

NodePropertiesTools

public NodePropertiesTools()

Method Detail

appendOrReplaceNodeProperty

public void appendOrReplaceNodeProperty(org.fcrepo.kernel.rdf.IdentifierTranslator subjects,
                               javax.jcr.Node node,
                               String propertyName,
                               javax.jcr.Value newValue)
                                 throws javax.jcr.RepositoryException

Given a JCR node, property and value, either: - if the property is single-valued, replace the existing property with the new value - if the property is multivalued, append the new value to the property

Parameters:

node - the JCR node

propertyName - a name of a JCR property (either pre-existing or otherwise)

newValue - the JCR value to insert

Throws:

javax.jcr.RepositoryException

removeNodeProperty

public void removeNodeProperty(org.fcrepo.kernel.rdf.IdentifierTranslator subjects,
                      javax.jcr.Node node,
                      String propertyName,
                      javax.jcr.Value valueToRemove)
                        throws javax.jcr.RepositoryException

Given a JCR node, property and value, remove the value (if it exists) from the property, and remove the property if no values remove

Parameters:

node - the JCR node

propertyName - a name of a JCR property (either pre-existing or otherwise)

valueToRemove - the JCR value to remove

Throws:

javax.jcr.RepositoryException

getReferencePropertyName

public static String getReferencePropertyName(String propertyName)

When we add certain URI properties, we also want to leave a reference node

Parameters:

propertyName -

Returns:

getPropertyType

public int getPropertyType(javax.jcr.Node node,
                  String propertyName)
                    throws javax.jcr.RepositoryException

Get the JCR property type ID for a given property name. If unsure, mark it as UNDEFINED.

Parameters:

node - the JCR node to add the property on

propertyName - the property name

Returns:

a PropertyType value

Throws:

javax.jcr.RepositoryException

isMultivaluedProperty

public static boolean isMultivaluedProperty(javax.jcr.Node node,
                            String propertyName)
                                     throws javax.jcr.RepositoryException

Determine if a given JCR property name is single- or multi- valued. If unsure, choose the least restrictive option (multivalued)

Parameters:

node - the JCR node to check

propertyName - the property name (which may or may not already exist)

Returns:

true if the property is (or could be) multivalued

Throws:

javax.jcr.RepositoryException