org.dspace.browse

Class BrowseIndex

java.lang.Object

org.dspace.browse.BrowseIndex

public final class BrowseIndex
extends Object

This class holds all the information about a specifically configured BrowseIndex. It is responsible for parsing the configuration, understanding about what sort options are available, and what the names of the database tables that hold all the information are actually called.

Author:

Richard Jones

Method Summary

Modifier and Type	Method and Description
void	generateMdBits() Populate the internal array containing the bits of metadata, for ease of use later
static BrowseIndex	getBrowseIndex(SortOption so) Get the configured browse index that is defined to use this sort option.
static BrowseIndex	getBrowseIndex(String name) Get the browse index from configuration with the specified name.
static BrowseIndex[]	getBrowseIndices() Get an array of all the browse indices for the current configuration
String	getDataType()
String	getDefaultOrder()
String	getDisplayType()
String	getDistinctTableName() Get the default name of the distinct table.
String	getIndexColumn() Get the name of the primary key index column
static BrowseIndex	getItemBrowseIndex() Get the internally defined browse index for archived items.
String	getMapTableName() Get the default name of the distinct map table.
String[]	getMdBits(int idx)
String	getMetadata()
String	getMetadata(int idx)
int	getMetadataCount()
String	getName()
static BrowseIndex	getPrivateBrowseIndex()
String	getSequenceName(boolean isDistinct, boolean isMap) Get the name of the sequence that will be used in the given circumstances
static String	getSequenceName(int number, boolean isDistinct, boolean isMap) Get the name of the sequence that will be used in the given circumstances
String	getSortField(boolean isSecondLevel) Get the field for sorting associated with this index.
SortOption	getSortOption() Get the SortOption associated with this index.
String	getTableName() Get the default index table name.
String	getTableName(boolean isCommunity, boolean isCollection) Deprecated. 1.5
String	getTableName(boolean isDistinct, boolean isCommunity, boolean isCollection) Deprecated. 1.5
String	getTableName(boolean isCommunity, boolean isCollection, boolean isDistinct, boolean isMap) Deprecated. 1.5
static String	getTableName(int number, boolean isCommunity, boolean isCollection, boolean isDistinct, boolean isMap) Deprecated. 1.5
String	getValueColumn() Get the name of the column that is used to store the default value column
static BrowseIndex	getWithdrawnBrowseIndex() Get the internally defined browse index for withdrawn items.
String[]	interpretField(String mfield, String init) Take a string representation of a metadata field, and return it as an array.
boolean	isAuthorityIndex() Is the browse index authority value?
boolean	isDate() Is the browse index type for a date?
boolean	isDisplayFrequencies()
boolean	isInternalIndex() Does this browse index represent one of the internal item indexes?
boolean	isItemIndex() Is the browse index of display type full?
boolean	isMetadataIndex() Is the browse index of display type single?
boolean	isTagCloudEnabled() Is tag cloud enabled
static String[]	tables() Deprecated.

Methods inherited from class java.lang.Object

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

Method Detail

getDefaultOrder

public String getDefaultOrder()

Returns:

Default order for this index, null if not specified

getDataType

public String getDataType()

Returns:

Returns the datatype.

getDisplayType

public String getDisplayType()

Returns:

Returns the displayType.

getMetadataCount

public int getMetadataCount()

Returns:

Returns the number of metadata fields for this index

getMdBits

public String[] getMdBits(int idx)

Parameters:

idx - index

Returns:

Returns the mdBits.

getMetadata

public String getMetadata()

Returns:

Returns the metadata.

getMetadata

public String getMetadata(int idx)

Parameters:

idx - index

Returns:

metadata

getName

public String getName()

Returns:

Returns the name.

getSortOption

public SortOption getSortOption()

Get the SortOption associated with this index.

Returns:

SortOption

isDisplayFrequencies

public boolean isDisplayFrequencies()

Returns:

true or false

generateMdBits

public void generateMdBits()

Populate the internal array containing the bits of metadata, for ease of use later

getSequenceName

public String getSequenceName(boolean isDistinct,
                              boolean isMap)

Get the name of the sequence that will be used in the given circumstances

Parameters:

isDistinct - is a distinct table

isMap - is a map table

Returns:

the name of the sequence

getSequenceName

public static String getSequenceName(int number,
                                     boolean isDistinct,
                                     boolean isMap)

Get the name of the sequence that will be used in the given circumstances

Parameters:

number - the index configuration number

isDistinct - is a distinct table

isMap - is a map table

Returns:

the name of the sequence

getTableName

public static String getTableName(int number,
                                  boolean isCommunity,
                                  boolean isCollection,
                                  boolean isDistinct,
                                  boolean isMap)

Deprecated. 1.5

Get the name of the table for the given set of circumstances This is provided solely for cleaning the database, where you are trying to create table names that may not be reflected in the current index

Parameters:

number - the index configuration number

isCommunity - whether this is a community constrained index (view)

isCollection - whether this is a collection constrained index (view)

isDistinct - whether this is a distinct table

isMap - whether this is a distinct map table

Returns:

the name of the table

getTableName

public String getTableName(boolean isCommunity,
                           boolean isCollection,
                           boolean isDistinct,
                           boolean isMap)

Deprecated. 1.5

Get the name of the table in the given circumstances

Parameters:

isCommunity - whether this is a community constrained index (view)

isCollection - whether this is a collection constrained index (view)

isDistinct - whether this is a distinct table

isMap - whether this is a distinct map table

Returns:

the name of the table

getTableName

public String getTableName(boolean isCommunity,
                           boolean isCollection)

Deprecated. 1.5

Get the name of the table in the given circumstances. This is the same as calling getTableName(isCommunity, isCollection, false, false);

Parameters:

isCommunity - whether this is a community constrained index (view)

isCollection - whether this is a collection constrained index (view)

Returns:

the name of the table

getTableName

public String getTableName()

Get the default index table name. This is the same as calling getTableName(false, false, false, false);

Returns:

table name

getTableName

public String getTableName(boolean isDistinct,
                           boolean isCommunity,
                           boolean isCollection)

Deprecated. 1.5

Get the table name for the given set of circumstances. This is the same as calling: getTableName(isCommunity, isCollection, isDistinct, false);

Parameters:

isCommunity - whether this is a community constrained index (view)

isCollection - whether this is a collection constrained index (view)

isDistinct - whether this is a distinct table

Returns:

table name

getMapTableName

public String getMapTableName()

Get the default name of the distinct map table. This is the same as calling getTableName(false, false, false, true);

Returns:

table name

getDistinctTableName

public String getDistinctTableName()

Get the default name of the distinct table. This is the same as calling getTableName(false, false, true, false);

Returns:

table name

getValueColumn

public String getValueColumn()

Get the name of the column that is used to store the default value column

Returns:

the name of the value column

getIndexColumn

public String getIndexColumn()

Get the name of the primary key index column

Returns:

the name of the primary key index column

isDate

public boolean isDate()

Is the browse index type for a date?

Returns:

true if date type, false if not

isMetadataIndex

public boolean isMetadataIndex()

Is the browse index of display type single?

Returns:

true if singe, false if not

isAuthorityIndex

public boolean isAuthorityIndex()

Is the browse index authority value?

Returns:

true if authority, false if not

isItemIndex

public boolean isItemIndex()

Is the browse index of display type full?

Returns:

true if full, false if not

getSortField

public String getSortField(boolean isSecondLevel)
                    throws BrowseException

Get the field for sorting associated with this index.

Parameters:

isSecondLevel - whether second level browse

Returns:

sort field

Throws:

BrowseException - if browse error

tables

public static String[] tables()
                       throws BrowseException

Deprecated.

Returns:

array of tables

Throws:

BrowseException - if browse error

getBrowseIndices

public static BrowseIndex[] getBrowseIndices()
                                      throws BrowseException

Get an array of all the browse indices for the current configuration

Returns:

an array of all the current browse indices

Throws:

BrowseException - if browse error

getBrowseIndex

public static BrowseIndex getBrowseIndex(String name)
                                  throws BrowseException

Get the browse index from configuration with the specified name. The name is the first part of the browse configuration

Parameters:

name - the name to retrieve

Returns:

the specified browse index

Throws:

BrowseException - if browse error

getBrowseIndex

public static BrowseIndex getBrowseIndex(SortOption so)
                                  throws BrowseException

Get the configured browse index that is defined to use this sort option.

Parameters:

so - sort option

Returns:

browse index

Throws:

BrowseException - if browse error

getItemBrowseIndex

public static BrowseIndex getItemBrowseIndex()

Get the internally defined browse index for archived items.

Returns:

browse index

getWithdrawnBrowseIndex

public static BrowseIndex getWithdrawnBrowseIndex()

Get the internally defined browse index for withdrawn items.

Returns:

browse index

getPrivateBrowseIndex

public static BrowseIndex getPrivateBrowseIndex()

Returns:

browse index

interpretField

public String[] interpretField(String mfield,
                               String init)
                        throws IOException

Take a string representation of a metadata field, and return it as an array. This is just a convenient utility method to basically break the metadata representation up by its delimiter (.), and stick it in an array, inserting the value of the init parameter when there is no metadata field part.

Parameters:

mfield - the string representation of the metadata

init - the default value of the array elements

Returns:

a three element array with schema, element and qualifier respectively

Throws:

IOException - if IO error

isInternalIndex

public boolean isInternalIndex()

Does this browse index represent one of the internal item indexes?

Returns:

true or false

isTagCloudEnabled

public boolean isTagCloudEnabled()

Is tag cloud enabled

Returns:

true or false