org.apache.poi.hpsf
Class CustomProperties

java.lang.Object
  java.util.AbstractMap<K,V>
      java.util.HashMap<java.lang.Object,CustomProperty>
          org.apache.poi.hpsf.CustomProperties

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Object,CustomProperty>

public class CustomProperties
extends java.util.HashMap<java.lang.Object,CustomProperty>

Maintains the instances of CustomProperty that belong to a DocumentSummaryInformation. The class maintains the names of the custom properties in a dictionary. It implements the Map interface and by this provides a simplified view on custom properties: A property's name is the key that maps to a typed value. This implementation hides property IDs from the developer and regards the property names as keys to typed values.

While this class provides a simple API to custom properties, it ignores the fact that not names, but IDs are the real keys to properties. Under the hood this class maintains a 1:1 relationship between IDs and names. Therefore you should not use this class to process property sets with several IDs mapping to the same name or with properties without a name: the result will contain only a subset of the original properties. If you really need to deal such property sets, use HPSF's low-level access methods.

An application can call the isPure method to check whether a property set parsed by CustomProperties is still pure (i.e. unmodified) or whether one or more properties have been dropped.

This class is not thread-safe; concurrent access to instances of this class must be synchronized.

While this class is roughly HashMap, that's the internal representation. To external calls, it should appear as HashMap mapping between Names and Custom Property Values.

Author:

Rainer Klute <klute@rainer-klute.de>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Constructor Summary

CustomProperties()

Method Summary

boolean	containsKey(java.lang.Object key) Checks against both String Name and Long ID
boolean	containsValue(java.lang.Object value) Checks against both the property, and its values.
java.lang.Object	get(java.lang.String name) Gets a named value from the custom properties.
int	getCodepage() Gets the codepage.
java.util.Set<java.lang.String>	idSet() Returns a set of all the IDs of our custom properties
boolean	isPure() Tells whether this CustomProperties instance is pure or one or more properties of the underlying low-level property set has been dropped.
java.util.Set	keySet() Returns a set of all the names of our custom properties.
java.util.Set<java.lang.String>	nameSet() Returns a set of all the names of our custom properties
java.lang.Object	put(java.lang.String name, java.lang.Boolean value) Adds a named boolean property.
CustomProperty	put(java.lang.String name, CustomProperty cp) Puts a CustomProperty into this map.
java.lang.Object	put(java.lang.String name, java.util.Date value) Adds a named date property.
java.lang.Object	put(java.lang.String name, java.lang.Double value) Adds a named double property.
java.lang.Object	put(java.lang.String name, java.lang.Integer value) Adds a named integer property.
java.lang.Object	put(java.lang.String name, java.lang.Long value) Adds a named long property.
java.lang.Object	put(java.lang.String name, java.lang.String value) Adds a named string property.
java.lang.Object	remove(java.lang.String name) Removes a custom property.
void	setCodepage(int codepage) Sets the codepage.
void	setPure(boolean isPure) Sets the purity of the custom property set.

Methods inherited from class java.util.HashMap

clear, clone, entrySet, get, isEmpty, put, putAll, remove, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

CustomProperties

public CustomProperties()

Method Detail

put

public CustomProperty put(java.lang.String name,
                          CustomProperty cp)

Puts a CustomProperty into this map. It is assumed that the CustomProperty already has a valid ID. Otherwise use put(CustomProperty).

remove

public java.lang.Object remove(java.lang.String name)

Removes a custom property.

Parameters:

name - The name of the custom property to remove

Returns:

The removed property or null if the specified property was not found.

See Also:

HashSet.remove(java.lang.Object)

put

public java.lang.Object put(java.lang.String name,
                            java.lang.String value)

Adds a named string property.

Parameters:

name - The property's name.

value - The property's value.

Returns:

the property that was stored under the specified name before, or null if there was no such property before.

put

public java.lang.Object put(java.lang.String name,
                            java.lang.Long value)

Adds a named long property.

Parameters:

name - The property's name.

value - The property's value.

Returns:

the property that was stored under the specified name before, or null if there was no such property before.

put

public java.lang.Object put(java.lang.String name,
                            java.lang.Double value)

Adds a named double property.

Parameters:

name - The property's name.

value - The property's value.

Returns:

the property that was stored under the specified name before, or null if there was no such property before.

put

public java.lang.Object put(java.lang.String name,
                            java.lang.Integer value)

Adds a named integer property.

Parameters:

name - The property's name.

value - The property's value.

Returns:

the property that was stored under the specified name before, or null if there was no such property before.

put

public java.lang.Object put(java.lang.String name,
                            java.lang.Boolean value)

Adds a named boolean property.

Parameters:

name - The property's name.

value - The property's value.

Returns:

the property that was stored under the specified name before, or null if there was no such property before.

get

public java.lang.Object get(java.lang.String name)

Gets a named value from the custom properties.

Parameters:

name - the name of the value to get

Returns:

the value or null if a value with the specified name is not found in the custom properties.

put

public java.lang.Object put(java.lang.String name,
                            java.util.Date value)

Adds a named date property.

Parameters:

name - The property's name.

value - The property's value.

Returns:

the property that was stored under the specified name before, or null if there was no such property before.

keySet

public java.util.Set keySet()

Returns a set of all the names of our custom properties. Equivalent to nameSet()

Specified by:

keySet in interface java.util.Map<java.lang.Object,CustomProperty>

Overrides:

keySet in class java.util.HashMap<java.lang.Object,CustomProperty>

nameSet

public java.util.Set<java.lang.String> nameSet()

Returns a set of all the names of our custom properties

idSet

public java.util.Set<java.lang.String> idSet()

Returns a set of all the IDs of our custom properties

setCodepage

public void setCodepage(int codepage)

Sets the codepage.

Parameters:

codepage - the codepage

containsKey

public boolean containsKey(java.lang.Object key)

Checks against both String Name and Long ID

Specified by:

containsKey in interface java.util.Map<java.lang.Object,CustomProperty>

Overrides:

containsKey in class java.util.HashMap<java.lang.Object,CustomProperty>

containsValue

public boolean containsValue(java.lang.Object value)

Checks against both the property, and its values.

Specified by:

containsValue in interface java.util.Map<java.lang.Object,CustomProperty>

Overrides:

containsValue in class java.util.HashMap<java.lang.Object,CustomProperty>

getCodepage

public int getCodepage()

Gets the codepage.

Returns:

the codepage or -1 if the codepage is undefined.

isPure

public boolean isPure()

Tells whether this CustomProperties instance is pure or one or more properties of the underlying low-level property set has been dropped.

Returns:

true if the CustomProperties is pure, else false.

setPure

public void setPure(boolean isPure)

Sets the purity of the custom property set.

Parameters:

isPure - the purity