Examples of org.lilyproject.repository.api.Record

org.lilyproject.repository.api.Record
A Record is the core entity managed by the {@link Repository}.
A Record can be instantiated via {@link Repository#newRecord() Repository.newRecord} or retrieved via{@link Repository#read(RecordId) Repository.read}. As all entities within this API, records are dumb data objects.
All Record-related CRUD operations are available on the {@link Repository} interface:{@link Repository#create(Record) Create}, {@link Repository#read(RecordId) Read}, {@link Repository#update(Record) Update}, {@link Repository#delete(RecordId) Delete}.
A Record object is not necessarily a representation of a complete record. When {@link Repository#read(RecordId,java.util.List) reading}a record, you can specify to only read certain fields. Likewise, when {@link Repository#update(Record) updating}, you only need to put the fields in this object that you want to be updated. But it is not necessary to remove unchanged fields from this object, the repository will compare with the current situation and ignore unchanged fields.
Since for an update, this object only needs to contain the fields you want to update, fields that are not in this object will not be automatically removed from the record. Rather, you have to say explicitly which fields should be deleted by adding them to the {@link #getFieldsToDelete() fields-to-delete} list. If thefields-to-delete list contains field names that do not exist in the record, then these will be ignored upon update, rather than causing an exception.
The {@link RecordType} and its version define the schema of the record. As is explained in more detail inLily's repository model documentation, a record has a pointer to three (possibly) different record types, one for each scope.

        ValueType rvt = typeManager.getValueType("RECORD");
        FieldType ft1 = typeManager.createFieldType(typeManager.newFieldType(rvt, ft1Name, Scope.NON_VERSIONED));
        FieldType ft2 = typeManager.createFieldType(typeManager.newFieldType(rvt, ft2Name, Scope.VERSIONED));
        typeManager.recordTypeBuilder().name(rtName).field(ft1.getId(), false).field(ft2.getId(), false).create();


        Record ft1Value1 = repository.recordBuilder().recordType(rvtRTName).field(fieldType1.getName(), "ft1abc")
                .build();


        // Create nested record


        Record record = repository.recordBuilder().recordType(rtName).field(ft1Name, ft1Value1).build();
        record.setField(ft2Name, record);
        try {
            repository.create(record);
            fail("Expecting a Record Exception since a record may not be nested in itself");
        } catch (RecordException expected) {
        }


        // Create with deep nesting


        Record ft2Value2 = repository.recordBuilder().recordType(rvtRTName).field(ft1Name, record).build();
        record.setField(ft2Name, ft2Value2);
        try {
            repository.create(record);
            fail("Expecting a Record Exception since a record may not be nested in itself");
        } catch (RecordException expected) {

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        FieldType byteArrayValueType = typeManager.createFieldType("BYTEARRAY", new QName("testByteArrayValueType",
                "field1"), Scope.NON_VERSIONED);
        RecordType recordType = typeManager.recordTypeBuilder().defaultNamespace("testByteArrayValueType")
                .name("recordType1")
                .field(byteArrayValueType.getId(), false).create();
        Record record = repository.recordBuilder().defaultNamespace("testByteArrayValueType").recordType("recordType1")
                .field("field1", new ByteArray(Bytes.toBytes("some bytes"))).create();
        Record readRecord = repository.read(record.getId());
        ByteArray readValue = readRecord.getField(new QName("testByteArrayValueType", "field1"));
        assertEquals("some bytes", Bytes.toString(readValue.getBytesUnsafe()));
    }

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    @Test
    public void testScannerBasics() throws Exception {
        List<String> fieldValues = new ArrayList<String>();
        for (int i = 'A'; i <= 'Z'; i++) {
            RecordId id = idGenerator.newRecordId("Z" + (char) i);
            Record record = repository.newRecord(id);
            record.setRecordType(recordType1.getName());
            String value = "field 1 - " + (char) i;
            fieldValues.add(value);
            record.setField(fieldType1.getName(), value);
            repository.create(record);
        }


        RecordScan scan = new RecordScan();
        scan.setStartRecordId(idGenerator.newRecordId("ZA"));
        scan.setStopRecordId(idGenerator.newRecordId("ZZ")); // stop row is exclusive


        RecordScanner scanner = repository.getScanner(scan);


        int i = 0;
        Record record;
        while ((record = scanner.next()) != null) {
            assertEquals(record.getField(fieldType1.getName()), fieldValues.get(i));
            i++;
        }
        scanner.close();
        assertEquals("Found 25 records", 25, i);

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    }


    @Test
    public void testScannerWithIdRecords() throws Exception {
        RecordId id = idGenerator.newRecordId();
        Record record = repository.newRecord(id);
        record.setRecordType(recordType1.getName());
        record.setField(fieldType1.getName(), "dummy value");
        repository.create(record);


        RecordScan scan = new RecordScan();


        IdRecordScanner scanner = repository.getScannerWithIds(scan);

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    }


    @Test(expected = ClassCastException.class)
    public void testScannerWithoutIdRecords() throws Exception {
        RecordId id = idGenerator.newRecordId();
        Record record = repository.newRecord(id);
        record.setRecordType(recordType1.getName());
        record.setField(fieldType1.getName(), "dummy value");
        repository.create(record);


        RecordScan scan = new RecordScan();


        // normal Record scanner!
        RecordScanner scanner = repository.getScanner(scan);
        final Record next = scanner.next();
        assertNotNull(next);


        // this cast will fail
        final IdRecord casted = (IdRecord) next;
    }

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                .fieldEntry()
                .use(fieldType)
                .add()
                .create();


        Record record =
                repository.recordBuilder().recordType(rt.getName()).field(fieldType.getName(), "value1").create();
        repository.recordBuilder().recordType(rt.getName()).field(fieldType.getName(), "value1").create();
        repository.recordBuilder().recordType(rt.getName()).field(fieldType.getName(), "value2").create();
        repository.recordBuilder().recordType(rt.getName()).field(fieldType.getName(), "value2").create();
        repository.recordBuilder().recordType(rt.getName()).field(fieldType.getName(), "value2").create();


        RecordScan scan = new RecordScan();
        scan.setRecordFilter(new FieldValueFilter(fieldType.getName(), "value1"));
        assertEquals(2, countResults(repository.getScanner(scan)));


        scan = new RecordScan();
        scan.setRecordFilter(new FieldValueFilter(fieldType.getName(), "value2"));
        assertEquals(3, countResults(repository.getScanner(scan)));


        scan = new RecordScan();
        scan.setRecordFilter(new FieldValueFilter(fieldType.getName(), CompareOp.NOT_EQUAL, "value1"));
        assertEquals(3, countResults(repository.getScanner(scan)));


        // (At the time of this writing, ...) when non-versioned fields are deleted, a delete marker is
        // written rather than really deleting the field. This delete marker would then also be 'not equal'
        // to the value we search, and we'd get an extra result. This test verifies the implementation takes
        // care of that.
        record.getFieldsToDelete().add(fieldType.getName());
        record.setField(fieldType1.getName(), "whatever");
        record = repository.update(record);


        scan = new RecordScan();
        scan.setRecordFilter(new FieldValueFilter(fieldType.getName(), CompareOp.NOT_EQUAL, "value1"));
        assertEquals(3, countResults(repository.getScanner(scan)));

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        // Test ALL filter
        RecordScan scan = new RecordScan();
        scan.setRecordFilter(new RecordTypeFilter(rt.getName()));
        scan.setReturnFields(new ReturnFields(ReturnFields.Type.ALL));
        Record record = repository.getScanner(scan).next();
        assertEquals(3, record.getFields().size());


        // Test NONE filter
        scan = new RecordScan();
        scan.setRecordFilter(new RecordTypeFilter(rt.getName()));
        scan.setReturnFields(new ReturnFields(ReturnFields.Type.NONE));
        record = repository.getScanner(scan).next();
        assertEquals(0, record.getFields().size());


        // Test ENUM filter
        scan = new RecordScan();
        scan.setRecordFilter(new RecordTypeFilter(rt.getName()));
        scan.setReturnFields(new ReturnFields(f1.getName(), f2.getName()));
        record = repository.getScanner(scan).next();
        assertEquals(2, record.getFields().size());
        assertTrue(record.hasField(f1.getName()));
        assertTrue(record.hasField(f2.getName()));
        assertFalse(record.hasField(f3.getName()));


        // Test scanning on filtered field, should not work
        scan = new RecordScan();
        RecordFilterList filterList = new RecordFilterList();
        filterList.addFilter(new RecordTypeFilter(rt.getName()));

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                break;
            }
        }


        if (!allSatisfied) {
            Record responseRecord = record.cloneRecord();
            if (newRecord != null) {
                // reduce the fields to return to those that were submitted
                reduceFields(responseRecord, newRecord.getFields().keySet());
            } else {
                // reduce the fields to those on which conditions were put
                reduceFields(responseRecord, extractFields(conditions));
            }
            responseRecord.setResponseStatus(ResponseStatus.CONFLICT);
            return responseRecord;
        }


        return null;
    }

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        // Test ALL filter
        RecordScan scan = new RecordScan();
        scan.setRecordFilter(new RecordTypeFilter(rt.getName()));
        scan.setReturnFields(new ReturnFields(ReturnFields.Type.ALL));
        Record record = repository.getScanner(scan).next();
        assertNotNull(record.getRecordTypeName());
        assertEquals(ns, record.getRecordTypeName().getNamespace());


        // Test NONE filter
        scan = new RecordScan();
        scan.setRecordFilter(new RecordTypeFilter(rt.getName()));
        scan.setReturnFields(new ReturnFields(ReturnFields.Type.NONE));
        record = repository.getScanner(scan).next();
        assertNotNull(record.getRecordTypeName());
        assertEquals(ns, record.getRecordTypeName().getNamespace());


        // Test ENUM filter
        scan = new RecordScan();
        scan.setRecordFilter(new RecordTypeFilter(rt.getName()));
        scan.setReturnFields(new ReturnFields(f1.getName(), f2.getName()));
        record = repository.getScanner(scan).next();
        assertNotNull(record.getRecordTypeName());
        assertEquals(ns, record.getRecordTypeName().getNamespace());
    }

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        LTable table = repository.getTable(indexUpdateBuilder.getTable());
        final IdRecordScanner scanner = table.getScannerWithIds(scan);
        IdRecord next;
        while ((next = scanner.next()) != null) {
            try {
                final Record record = VersionTag.getIdRecord(next, indexUpdateBuilder.getVTag(), table, repository);
                result.add(record);
            } catch (RecordNotFoundException rnfe) {
                //ok
            } catch (VersionNotFoundException vnfe) {
                //ok

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