/** Remove the index on property */
public void removeIndex() {
if (index != null) {
index.clear();
index.getRecord().delete();
index = null;
setDirty();
}
}
public void fromStream() {
name = document.field("name");
if (document.field("type") != null)
type = OType.getById(((Long) document.field("type")).byteValue());
offset = ((Long) document.field("offset")).intValue();
mandatory = (Boolean) document.field("mandatory");
notNull = (Boolean) document.field("notNull");
min = document.field("min");
max = document.field("max");
linkedClassName = (String) document.field("linkedClass");
if (document.field("linkedType") != null)
linkedType = OType.getById(((Long) document.field("linkedType")).byteValue());
if (document.field("index") != null) {
setIndex(
INDEX_TYPE.valueOf((String) document.field("index-type")),
((ODocument) document.field("index")).getIdentity());
try {
index.load();
} catch (IOException e) {
OLogManager.instance()
.error(
this, "Can't load index for property %s", e, ODatabaseException.class, toString());
}
}
}
/**
* Creates an index on this property. Indexes speed up queries but slow down insert and update
* operations. For massive inserts we suggest to remove the index, make the massive insert and
* recreate it.
*
* @param iType One of types supported.
* <ul>
* <li>UNIQUE: Doesn't allow duplicates
* <li>NOT_UNIQUE: Allow duplicates
* <li>FULL_TEXT: Indexes single word for full text search
* </ul>
*
* @return
*/
public OPropertyIndex createIndex(final INDEX_TYPE iType) {
if (index != null) throw new IllegalStateException("Index already created");
try {
switch (iType) {
case UNIQUE:
index =
new OPropertyIndexUnique(document.getDatabase(), this, OStorage.CLUSTER_INDEX_NAME);
break;
case NOT_UNIQUE:
index =
new OPropertyIndexNotUnique(
document.getDatabase(), this, OStorage.CLUSTER_INDEX_NAME);
break;
case FULLTEXT:
index = new OFullTextIndex(document.getDatabase(), this, OStorage.CLUSTER_INDEX_NAME);
break;
}
index.rebuild();
setDirty();
if (document.getDatabase() != null) {
// / SAVE ONLY IF THE PROPERTY IS ALREADY PERSISTENT
index.lazySave();
document.getDatabase().getMetadata().getSchema().save();
}
} catch (OIndexException e) {
throw e;
} catch (Exception e) {
OLogManager.instance()
.exception(
"Unable to create '%s' index for property: %s",
e, ODatabaseException.class, iType, toString());
}
return index;
}
@OBeforeSerialization
public ODocument toStream() {
document.field("name", name);
document.field("type", type.id);
document.field("offset", offset);
document.field("mandatory", mandatory);
document.field("notNull", notNull);
document.field("min", min);
document.field("max", max);
document.field("linkedClass", linkedClass != null ? linkedClass.getName() : null);
document.field("linkedType", linkedType != null ? linkedType.id : null);
// SAVE THE INDEX
if (index != null) {
index.lazySave();
document.field("index", index.getRID());
document.field("index-type", index.getType());
} else {
document.field("index", ORecordId.EMPTY_RECORD_ID);
}
return document;
}