Our goal is to define a single place where all type information will reside. We define TypeConfiguration class which will have multiple type extensions for different features. This configuration will be set for the whole Ignite instance with ability to override it on per-cache level.
public class TypeConfiguration implements Serializable { /** Serial version UID. */ private static final long serialVersionUID = 0L; /** Type name. */ private String typeName; /** * Package name. When set, configuration will be applied to all classes inside the package * (unless overriden in more specific TypeConfiguration). * Applicable only for cases when classes exists in node classpath. * TypeInfo implementations are free to decide whether they support packages or not. */ private String packageName; /** Affinity key field name. */ private String affKeyFieldName; /** Type info extensions. */ private Map<Class<? extends TypeInfo>, ? extends TypeInfo> typeInfos; public void setTypeInfo(TypeInfo... typeInfos) {...} public TypeInfo[] getTypeInfo() {...} public <T extends TypeInfo> T getTypeInfo(Class<T> infoCls) {...} }
Notes:
public interface TypeInfo extends Serializable { /** Whether implemenation supports single type. */ bool supportSingleType(); /** Whether implementation supports packages. */ bool supportPackage(); }
Notes:
public class PersistenceTypeInfo implements TypeInfo { /** Serial version UID. */ private static final long serialVersionUID = 0L; /** Schema name in database. */ private String dbSchema; /** Table name in database. */ private String dbTbl; /** Persisted fields. */ private Collection<PersistenceFieldInfo> fields; }
public class PersistenceFieldInfo implements Serializable { /** Serial version UID. */ private static final long serialVersionUID = 0L; /** Column name in database. */ private String dbFieldName; /** Column JDBC type in database. */ private int dbFieldType; /** Field name in java object. */ private String javaFieldName; /** Corresponding java type. */ private Class<?> javaFieldType; }
/** * */ public class PortableTypeInfo implements TypeInfo { /** Serial version UID. */ private static final long serialVersionUID = 0L; /** ID mapper. */ private PortableIdMapper idMapper; /** Serializer. */ private PortableSerializer serializer; /** Portable metadata enabled flag. When disabled query will not work for type. */ private Boolean metaDataEnabled = true; }
/** * */ public class QueryTypeInfo implements TypeInfo { /** Serial version UID. */ private static final long serialVersionUID = 0L; /** Field name-to-type map to be queried, in addition to indexed fields. */ @GridToStringInclude private Map<String, Class<?>> qryFlds; /** Field name-to-type map to index in ascending order. */ @GridToStringInclude private Map<String, Class<?>> ascFlds; /** Field name-to-type map to index in descending order. */ @GridToStringInclude private Map<String, Class<?>> descFlds; /** Fields to index as text. */ @GridToStringInclude private Collection<String> txtFlds; /** Fields to create group indexes for. */ @GridToStringInclude private Map<String, LinkedHashMap<String, IgniteBiTuple<Class<?>, Boolean>>> grps; }