Package org.neo4j.kernel.impl.nioneo.store

Examples of org.neo4j.kernel.impl.nioneo.store.PropertyStore

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    {
        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.
         */
 
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        return propRecords.get( 0 ).getId();
    }

    private void deletePropertyChain( long nextProp )
    {
        PropertyStore propStore = getPropertyStore();
        while ( nextProp != Record.NO_NEXT_PROPERTY.intValue() )
        {
            PropertyRecord propRecord = propStore.getRecord( nextProp );
            /*
             *  The only reason to loop over the blocks is to handle the dynamic
             *  records that possibly hang under them. Otherwise, we could just
             *  set the property record not in use and be done with it. The
             *  residue of the convenience is that we do not remove individual
             *  property blocks - we just mark the whole record as !inUse.
             */
            for ( PropertyBlock propBlock : propRecord.getPropertyBlocks() )
            {
                if ( propBlock.isLight() )
                {
                    propStore.makeHeavy( propBlock );
                }
                for ( DynamicRecord rec : propBlock.getValueRecords() )
                {
                    rec.setInUse( false );
                    propRecord.addDeletedRecord( rec );
                }
            }
            propRecord.setInUse( false );
            nextProp = propRecord.getNextProp();
            propStore.updateRecord( propRecord );
        }
    }
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        }
    }

    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() :
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    {
        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.
         */
 
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        return propRecords.get( 0 ).getId();
    }

    private void deletePropertyChain( long nextProp )
    {
        PropertyStore propStore = getPropertyStore();
        while ( nextProp != Record.NO_NEXT_PROPERTY.intValue() )
        {
            PropertyRecord propRecord = propStore.getRecord( nextProp );
            /*
             *  The only reason to loop over the blocks is to handle the dynamic
             *  records that possibly hang under them. Otherwise, we could just
             *  set the property record not in use and be done with it. The
             *  residue of the convenience is that we do not remove individual
             *  property blocks - we just mark the whole record as !inUse.
             */
            for ( PropertyBlock propBlock : propRecord.getPropertyBlocks() )
            {
                if ( propBlock.isLight() )
                {
                    propStore.makeHeavy( propBlock );
                }
                for ( DynamicRecord rec : propBlock.getValueRecords() )
                {
                    rec.setInUse( false );
                    propRecord.addDeletedRecord( rec );
                }
            }
            propRecord.setInUse( false );
            nextProp = propRecord.getNextProp();
            propStore.updateRecord( propRecord );
        }
    }
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        }
    }

    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() :
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    {
        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();
        }
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        return Record.NO_NEXT_PROPERTY.intValue();
    }
   
    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 );
    }
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        propStore.updateRecord( propertyRecord );
    }
   
    private Map<String,Object> getPropertyChain( long propertyId )
    {
        PropertyStore propStore = getPropertyStore();
        PropertyRecord propertyRecord = propStore.getRecord( propertyId );
        long nextProperty = -1;
        Map<String,Object> properties = new HashMap<String,Object>();
        do
        {
            nextProperty = propertyRecord.getNextProp();
            propStore.makeHeavy( propertyRecord );
            String key = indexHolder.getStringKey(
                propertyRecord.getKeyIndexId() );
            Object value = propStore.getValue( propertyRecord );
            properties.put( key, value );
            if ( nextProperty != Record.NO_NEXT_PROPERTY.intValue() )
            {
                propertyRecord =
                    propStore.getRecord( propertyRecord.getNextProp() );
            }
        } while ( nextProperty != Record.NO_NEXT_PROPERTY.intValue() );
        return properties;
    }
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Related Classes of org.neo4j.kernel.impl.nioneo.store.PropertyStore

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  • org.neo4j.kernel.impl.batchinsert.BatchInserterImpl
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