public class Metadata extends Object implements Writable, CreativeCommons, DublinCore, HttpHeaders, Nutch, Office
LICENSE_LOCATION, LICENSE_URL, WORK_TYPE
CONTRIBUTOR, COVERAGE, CREATOR, DATE, DESCRIPTION, FORMAT, IDENTIFIER, LANGUAGE, MODIFIED, PUBLISHER, RELATION, RIGHTS, SOURCE, SUBJECT, TITLE, TYPE
CONTENT_DISPOSITION, CONTENT_ENCODING, CONTENT_LANGUAGE, CONTENT_LENGTH, CONTENT_LOCATION, CONTENT_MD5, CONTENT_TYPE, LAST_MODIFIED, LOCATION
CACHING_FORBIDDEN_ALL, CACHING_FORBIDDEN_CONTENT, CACHING_FORBIDDEN_KEY, CACHING_FORBIDDEN_NONE, CHAR_ENCODING_FOR_CONVERSION, GENERATE_TIME_KEY, ORIGINAL_CHAR_ENCODING, PROTO_STATUS_KEY, SCORE_KEY, SEGMENT_NAME_KEY, SIGNATURE_KEY, WRITABLE_GENERATE_TIME_KEY, WRITABLE_PROTO_STATUS_KEY
APPLICATION_NAME, AUTHOR, CHARACTER_COUNT, COMMENTS, KEYWORDS, LAST_AUTHOR, LAST_PRINTED, LAST_SAVED, PAGE_COUNT, REVISION_NUMBER, TEMPLATE, WORD_COUNT
Constructor and Description |
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Metadata()
Constructs a new, empty metadata.
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Modifier and Type | Method and Description |
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void |
add(String name,
String value)
Add a metadata name/value mapping.
|
boolean |
equals(Object o) |
String |
get(String name)
Get the value associated to a metadata name.
|
String[] |
getValues(String name)
Get the values associated to a metadata name.
|
int |
hashCode() |
boolean |
isMultiValued(String name)
Returns true if named value is multivalued.
|
String[] |
names()
Returns an array of the names contained in the metadata.
|
void |
readFields(DataInput in)
Reads the fields of this object from
in . |
void |
remove(String name)
Remove a metadata and all its associated values.
|
void |
set(String name,
String value)
Set metadata name/value.
|
void |
setAll(Properties properties)
Copy All key-value pairs from properties.
|
int |
size()
Returns the number of metadata names in this metadata.
|
String |
toString() |
void |
write(DataOutput out)
Writes the fields of this object to
out . |
public boolean isMultiValued(String name)
name
- name of metadatapublic String[] names()
public String get(String name)
name
- of the metadata.public String[] getValues(String name)
name
- of the metadata.public void add(String name, String value)
name
- the metadata name.value
- the metadata value.public void setAll(Properties properties)
properties
- properties to copy frompublic void set(String name, String value)
name
- the metadata name.value
- the metadata value.public void remove(String name)
name
- metadata name to removepublic int size()
public final void write(DataOutput out) throws IOException
Writable
out
.write
in interface Writable
IOException
public final void readFields(DataInput in) throws IOException
Writable
in
. For efficiency,
implementations should attempt to re-use storage in the existing object
where possible.readFields
in interface Writable
IOException
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