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Simple metadata queries. #222

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Added support for retrieving metadata that matches all key/value pairs in a query.
This commit is contained in:
akwizgran
2016-05-12 17:40:11 +01:00
parent af1f267d4b
commit f2ab0eff53
8 changed files with 258 additions and 38 deletions
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15
briar-api/src/org/briarproject/api/clients/ClientHelper.java
View File

@@ -27,12 +27,6 @@ public interface ClientHelper {
Message createMessage(GroupId g, long timestamp, BdfList body)
throws FormatException;
BdfDictionary getMessageAsDictionary(MessageId m) throws DbException,
FormatException;
BdfDictionary getMessageAsDictionary(Transaction txn, MessageId m)
throws DbException, FormatException;
BdfList getMessageAsList(MessageId m) throws DbException, FormatException;
BdfList getMessageAsList(Transaction txn, MessageId m) throws DbException,
@@ -50,12 +44,19 @@ public interface ClientHelper {
BdfDictionary getMessageMetadataAsDictionary(Transaction txn, MessageId m)
throws DbException, FormatException;
Map<MessageId, BdfDictionary> getMessageMetatataAsDictionary(GroupId g)
Map<MessageId, BdfDictionary> getMessageMetadataAsDictionary(GroupId g)
throws DbException, FormatException;
Map<MessageId, BdfDictionary> getMessageMetadataAsDictionary(
Transaction txn, GroupId g) throws DbException, FormatException;
Map<MessageId, BdfDictionary> getMessageMetadataAsDictionary(GroupId g,
BdfDictionary query) throws DbException, FormatException;
Map<MessageId, BdfDictionary> getMessageMetadataAsDictionary(
Transaction txn, GroupId g, BdfDictionary query) throws DbException,
FormatException;
void mergeGroupMetadata(GroupId g, BdfDictionary metadata)
throws DbException, FormatException;

10
briar-api/src/org/briarproject/api/db/DatabaseComponent.java
View File

@@ -249,6 +249,16 @@ public interface DatabaseComponent {
Map<MessageId, Metadata> getMessageMetadata(Transaction txn, GroupId g)
throws DbException;
/**
* Returns the metadata for any messages in the given group with metadata
* that matches all entries in the given query. If the query is empty, the
* metadata for all messages is returned.
* <p/>
* Read-only.
*/
Map<MessageId, Metadata> getMessageMetadata(Transaction txn, GroupId g,
Metadata query) throws DbException;
/**
* Returns the metadata for the given message.
* <p/>