Examples with PropertyStore org.neo4j.kernel.impl.nioneo.store.PropertyStore used on opensource projects

Example 1 with PropertyStore

use of org.neo4j.kernel.impl.nioneo.store.PropertyStore in project neo4j-mobile-android by neo4j-contrib.

the class BatchInserterImpl method createPropertyChain.

private long createPropertyChain(Map<String, Object> properties) {
    if (properties == null || properties.isEmpty()) {
        return Record.NO_NEXT_PROPERTY.intValue();
    }
    PropertyStore propStore = getPropertyStore();
    List<PropertyRecord> propRecords = new ArrayList<PropertyRecord>();
    PropertyRecord currentRecord = new PropertyRecord(propStore.nextId());
    currentRecord.setInUse(true);
    currentRecord.setCreated();
    propRecords.add(currentRecord);
    for (Entry<String, Object> entry : properties.entrySet()) {
        int keyId = indexHolder.getKeyId(entry.getKey());
        if (keyId == -1) {
            keyId = createNewPropertyIndex(entry.getKey());
        }
        PropertyBlock block = new PropertyBlock();
        propStore.encodeValue(block, keyId, entry.getValue());
        if (currentRecord.size() + block.getSize() > PropertyType.getPayloadSize()) {
            // Here it means the current block is done for
            PropertyRecord prevRecord = currentRecord;
            // Create new record
            long propertyId = propStore.nextId();
            currentRecord = new PropertyRecord(propertyId);
            currentRecord.setInUse(true);
            currentRecord.setCreated();
            // Set up links
            prevRecord.setNextProp(propertyId);
            currentRecord.setPrevProp(prevRecord.getId());
            propRecords.add(currentRecord);
        // Now current is ready to start picking up blocks
        }
        currentRecord.addPropertyBlock(block);
    }
    /*
         * Add the property records in reverse order, which means largest
         * id first. That is to make sure we expand the property store file
         * only once.
         */
    for (int i = propRecords.size() - 1; i >= 0; i--) {
        propStore.updateRecord(propRecords.get(i));
    }
    /*
         *  0 will always exist, if the map was empty we wouldn't be here
         *  and even one property will create at least one record.
         */
    return propRecords.get(0).getId();
}

Example 2 with PropertyStore

use of org.neo4j.kernel.impl.nioneo.store.PropertyStore in project neo4j-mobile-android by neo4j-contrib.

the class BatchInserterImpl method deletePropertyChain.

private void deletePropertyChain(long nextProp) {
    PropertyStore propStore = getPropertyStore();
    while (nextProp != Record.NO_NEXT_PROPERTY.intValue()) {
        PropertyRecord propRecord = propStore.getRecord(nextProp);
        for (PropertyBlock propBlock : propRecord.getPropertyBlocks()) {
            propStore.makeHeavy(propBlock);
            for (DynamicRecord rec : propBlock.getValueRecords()) {
                rec.setInUse(false);
                propRecord.addDeletedRecord(rec);
            }
        }
        propRecord.setInUse(false);
        nextProp = propRecord.getNextProp();
        propStore.updateRecord(propRecord);
    }
}

Example 3 with PropertyStore

use of org.neo4j.kernel.impl.nioneo.store.PropertyStore in project neo4j-mobile-android by neo4j-contrib.

the class BatchInserterImpl method getPropertyChain.

private Map<String, Object> getPropertyChain(long nextProp) {
    PropertyStore propStore = getPropertyStore();
    Map<String, Object> properties = new HashMap<String, Object>();
    while (nextProp != Record.NO_NEXT_PROPERTY.intValue()) {
        PropertyRecord propRecord = propStore.getRecord(nextProp);
        for (PropertyBlock propBlock : propRecord.getPropertyBlocks()) {
            String key = indexHolder.getStringKey(propBlock.getKeyIndexId());
            PropertyData propertyData = propBlock.newPropertyData(propRecord);
            Object value = propertyData.getValue() != null ? propertyData.getValue() : propBlock.getType().getValue(propBlock, getPropertyStore());
            properties.put(key, value);
        }
        nextProp = propRecord.getNextProp();
    }
    return properties;
}

Example 4 with PropertyStore

use of org.neo4j.kernel.impl.nioneo.store.PropertyStore in project graphdb by neo4j-attic.

the class BatchInserterImpl method deletePropertyChain.

private void deletePropertyChain(long propertyId) {
    PropertyStore propStore = getPropertyStore();
    PropertyRecord propertyRecord = propStore.getRecord(propertyId);
    propertyRecord.setInUse(false);
    for (DynamicRecord record : propertyRecord.getValueRecords()) {
        record.setInUse(false);
    }
    propStore.updateRecord(propertyRecord);
}

Example 5 with PropertyStore

use of org.neo4j.kernel.impl.nioneo.store.PropertyStore in project graphdb by neo4j-attic.

the class BatchInserterImpl method createPropertyChain.

private long createPropertyChain(Map<String, Object> properties) {
    if (properties == null) {
        return Record.NO_NEXT_PROPERTY.intValue();
    }
    PropertyStore propStore = getPropertyStore();
    List<PropertyRecord> propRecords = new ArrayList<PropertyRecord>();
    PropertyRecord prevRecord = null;
    for (Entry<String, Object> entry : properties.entrySet()) {
        int keyId = indexHolder.getKeyId(entry.getKey());
        if (keyId == -1) {
            keyId = createNewPropertyIndex(entry.getKey());
        }
        long propertyId = propStore.nextId();
        PropertyRecord propertyRecord = new PropertyRecord(propertyId);
        propertyRecord.setInUse(true);
        propertyRecord.setCreated();
        propertyRecord.setKeyIndexId(keyId);
        propStore.encodeValue(propertyRecord, entry.getValue());
        if (prevRecord != null) {
            prevRecord.setPrevProp(propertyId);
            propertyRecord.setNextProp(prevRecord.getId());
        }
        propRecords.add(propertyRecord);
        prevRecord = propertyRecord;
    }
    // reverse order results in forward update to store
    for (int i = propRecords.size() - 1; i >= 0; i--) {
        propStore.updateRecord(propRecords.get(i));
    }
    if (prevRecord != null) {
        return prevRecord.getId();
    }
    return Record.NO_NEXT_PROPERTY.intValue();
}