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org.acs.damsel.srvr.schema
Class SchemaMgr  

java.lang.Object
  org.acs.damsel.srvr.schema.SchemaMgr

All Implemented Interfaces:

java.io.Serializable

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public class SchemaMgr

extends java.lang.Object

implements java.io.Serializable

Title: SchemaMgr

Description: The SchemaMgr class provides access to metadata Schemas, which in turn contain MetaDataTags and their associated information (i.e., controlled vocabulary lists). Aside from adding, removing, and getting handles on Schemas, SchemaMgr also provides easy access to a Vector of Strings containing the names of the available Schemas (i.e., for display purposes). SchemaMgr (as well as Schema and MetaDataTag) supports serialization and the current state of all Schemas can easily be stored and loaded using the save() and newSchemaMgrFromFile() methods. Note that newSchemaMgrFromFile should be used instead of the constructor, unless the schema file does not exist yet.

Version:

1.0

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Field Summary
private  org.acs.damsel.srvr.db.AssetDB	assetDB
private static org.apache.log4j.Logger	log

 

Constructor Summary

SchemaMgr()           Default constructor.

 

Method Summary
int	addSchema(Schema sch)           Method adds a Schema to the schema list.
int	addSchemaTag(MetaDataTag tag, java.lang.String schemaName)           Method adds a metadata tag to the schema specified by the schema name String.
void	deleteSchema(java.lang.String schName)           Method removes the Schema with the given name from the schema list.
int	deleteSchemaTag(MetaDataTag tag, java.lang.String schemaName)           Method deletes the metadata tag from the schema specified by the schema name.
java.util.Vector	getAllMetadataTags()           Obtain all the metadata tags used in the schematagstable
java.util.Vector	getCollectionsWithSchema(java.lang.String schemaName)           Method returns a vector of strings containing all of the collections with schemas called schemaName.
java.util.Vector	getEditableSchemas(org.acs.damsel.srvr.user.User user)           Returns a vector of strings containing the names of the schemas that can be edited by the user.
Schema	getSchema(java.lang.String schName)           Method returns the Schema with the given name.
Schema	getSchemaOfCollection(java.lang.String collName)           Method returns the schema corresponding to the specified collection.
java.util.Vector	schemaNames()           Returns list of schema names found in database.
int	updateSchema(Schema s)           Updates the entry for the specified schema in the SchemaTable of the database.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

log

private static org.apache.log4j.Logger log

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assetDB

private org.acs.damsel.srvr.db.AssetDB assetDB

Constructor Detail

SchemaMgr

public SchemaMgr()

Default constructor. Initializes an empty schema list.

Method Detail

addSchema

public int addSchema(Schema sch)
              throws java.sql.SQLException

Method adds a Schema to the schema list.

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getAllMetadataTags

public java.util.Vector getAllMetadataTags()

Obtain all the metadata tags used in the schematagstable

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addSchemaTag

public int addSchemaTag(MetaDataTag tag,
                        java.lang.String schemaName)
                 throws java.sql.SQLException

Method adds a metadata tag to the schema specified by the schema name String.

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deleteSchemaTag

public int deleteSchemaTag(MetaDataTag tag,
                           java.lang.String schemaName)
                    throws java.sql.SQLException

Method deletes the metadata tag from the schema specified by the schema name.

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deleteSchema

public void deleteSchema(java.lang.String schName)
                  throws SchemaMgrException

Method removes the Schema with the given name from the schema list. A SchemaMgrException is thrown if no such Schema is in the schema list.

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getSchema

public Schema getSchema(java.lang.String schName)
                 throws SchemaMgrException

Method returns the Schema with the given name. A SchemaMgrException is thrown if no such Schema is in the schema list.

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getSchemaOfCollection

public Schema getSchemaOfCollection(java.lang.String collName)
                             throws SchemaMgrException

Method returns the schema corresponding to the specified collection.

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getCollectionsWithSchema

public java.util.Vector getCollectionsWithSchema(java.lang.String schemaName)
                                          throws java.sql.SQLException

Method returns a vector of strings containing all of the collections with schemas called schemaName.

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schemaNames

public java.util.Vector schemaNames()

Returns list of schema names found in database.

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getEditableSchemas

public java.util.Vector getEditableSchemas(org.acs.damsel.srvr.user.User user)

Returns a vector of strings containing the names of the schemas that can be edited by the user.

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updateSchema

public int updateSchema(Schema s)

Updates the entry for the specified schema in the SchemaTable of the database.

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