com.sleepycat.persist.impl

Class SimpleFormat

java.lang.Object

com.sleepycat.persist.impl.Format

com.sleepycat.persist.impl.SimpleFormat

All Implemented Interfaces:

Reader, RawType, java.io.Serializable

Direct Known Subclasses:

SimpleFormat.FBigInt, SimpleFormat.FBool, SimpleFormat.FByte, SimpleFormat.FChar, SimpleFormat.FDate, SimpleFormat.FDouble, SimpleFormat.FFloat, SimpleFormat.FInt, SimpleFormat.FLong, SimpleFormat.FShort, SimpleFormat.FString

public abstract class SimpleFormat
extends Format

Format for simple types, including primitives. Additional methods are included to optimize the handling of primitives. Other classes such as PrimitiveArrayFormat and ReflectAccessor take advantage of these methods.

Author:

Mark Hayes

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SimpleFormat.FBigInt
static class	SimpleFormat.FBool
static class	SimpleFormat.FByte
static class	SimpleFormat.FChar
static class	SimpleFormat.FDate
static class	SimpleFormat.FDouble
static class	SimpleFormat.FFloat
static class	SimpleFormat.FInt
static class	SimpleFormat.FLong
static class	SimpleFormat.FShort
static class	SimpleFormat.FString

Field Summary

Fields inherited from class com.sleepycat.persist.impl.Format

ID_BIGDEC, ID_BIGINT, ID_BOOL, ID_BOOL_W, ID_BYTE, ID_BYTE_W, ID_CHAR, ID_CHAR_W, ID_DATE, ID_DOUBLE, ID_DOUBLE_W, ID_FLOAT, ID_FLOAT_W, ID_INT, ID_INT_W, ID_LONG, ID_LONG_W, ID_NULL, ID_NUMBER, ID_OBJECT, ID_PREDEFINED, ID_SHORT, ID_SHORT_W, ID_SIMPLE_MAX, ID_SIMPLE_MIN, ID_STRING

Constructor Summary

Constructors

Constructor and Description
SimpleFormat(java.lang.Class type, boolean primitive)

Method Summary

Methods

Modifier and Type	Method and Description
(package private) void	collectRelatedFormats(Catalog catalog, java.util.Map<java.lang.String,Format> newFormats) Calls catalog.createFormat for formats that this format depends on, or that should also be persistent.
(package private) void	copySecMultiKeyPrimitiveArray(int len, RecordInput input, java.util.Set results)
(package private) boolean	evolve(Format newFormat, Evolver evolver) Called for an existing format that may not equal the current format for the same class.
(package private) int	getPrimitiveLength()
(package private) Format	getWrapperFormat() For primitive types only, returns their associated wrapper type.
(package private) void	initialize(Catalog catalog, EntityModel model, int initVersion) Initializes an uninitialized format, initializing its related formats (superclass formats and array component formats) first.
boolean	isPrimitive() Returns whether this type is a Java primitive: char, byte, short, int, long, float or double.
boolean	isSimple() Returns whether this is a simple type: primitive, primitive wrapper, BigInteger, String or Date.
(package private) java.lang.Object	newPrimitiveArray(int len, EntityInput input)
java.lang.Object	readObject(java.lang.Object o, EntityInput input, boolean rawAccess) Called after newInstance() to read the rest of the data bytes and fill in the object contents.
(package private) void	readPrimitiveField(java.lang.Object o, EntityInput input, java.lang.reflect.Field field)
(package private) void	setWrapperFormat(SimpleFormat wrapperFormat)
(package private) void	skipPrimitiveArray(int len, RecordInput input)
(package private) void	writePrimitiveArray(java.lang.Object o, EntityOutput output)
(package private) void	writePrimitiveField(java.lang.Object o, EntityOutput output, java.lang.reflect.Field field)

Methods inherited from class com.sleepycat.persist.impl.Format

areNestedRefsProhibited, convertRawObject, copySecKey, copySecMultiKey, evolveMetadata, getCatalog, getClassMetadata, getClassName, getComponentType, getDimensions, getEntityFormat, getEntityMetadata, getEnumConstants, getEvolveNeeded, getExistingType, getFields, getId, getLatestVersion, getPreviousVersion, getProxiedFormat, getReader, getSequenceKeyFormat, getSuperFormat, getSuperType, getType, getVersion, initializeIfNeeded, initializeReader, isArray, isAssignableTo, isCurrentVersion, isDeleted, isEntity, isEnum, isInitialized, isModelClass, isNew, isPredefined, isPriKeyNullOrZero, isSameClass, migrateFromBeta, newArray, newInstance, nullifySecKey, readPriKey, setDeleted, setEvolveNeeded, setId, setLatestVersion, setProxiedFormat, setReader, setSuperFormat, setUnused, skipContents, skipToSecKey, toString, writeObject, writePriKey

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SimpleFormat

SimpleFormat(java.lang.Class type,
            boolean primitive)

Method Detail

setWrapperFormat

void setWrapperFormat(SimpleFormat wrapperFormat)

getWrapperFormat

Format getWrapperFormat()

Description copied from class: Format

For primitive types only, returns their associated wrapper type.

Overrides:

getWrapperFormat in class Format

isSimple

public boolean isSimple()

Description copied from interface: RawType

Returns whether this is a simple type: primitive, primitive wrapper, BigInteger, String or Date.

If true is returned, RawType.isPrimitive() can be called for more information, and a raw value of this type is represented as a simple type object (not as a RawObject).

If false is returned, this is a complex type, an array type (see RawType.isArray()), or an enum type, and a raw value of this type is represented as a RawObject.

Specified by:

isSimple in interface RawType

Overrides:

isSimple in class Format

isPrimitive

public boolean isPrimitive()

Description copied from interface: RawType

Returns whether this type is a Java primitive: char, byte, short, int, long, float or double.

If true is returned, this is also a simple type. In other words, primitive types are a subset of simple types.

If true is returned, a raw value of this type is represented as a non-null instance of the primitive type's wrapper class. For example, an int raw value is represented as an Integer.

Specified by:

isPrimitive in interface RawType

Overrides:

isPrimitive in class Format

collectRelatedFormats

void collectRelatedFormats(Catalog catalog,
                         java.util.Map<java.lang.String,Format> newFormats)

Description copied from class: Format

Calls catalog.createFormat for formats that this format depends on, or that should also be persistent.

Specified by:

collectRelatedFormats in class Format

initialize

void initialize(Catalog catalog,
              EntityModel model,
              int initVersion)

Description copied from class: Format

Initializes an uninitialized format, initializing its related formats (superclass formats and array component formats) first.

Specified by:

initialize in class Format

readObject

public java.lang.Object readObject(java.lang.Object o,
                          EntityInput input,
                          boolean rawAccess)

Description copied from class: Format

Called after newInstance() to read the rest of the data bytes and fill in the object contents. If the object was read completely by newInstance(), this method does nothing. Is public only in order to implement the Reader interface. Note that this method should only be called directly in raw conversion mode or during conversion of an old format. Normally it should be called via the getReader method and the Reader interface.

Specified by:

readObject in interface Reader

Specified by:

readObject in class Format

evolve

boolean evolve(Format newFormat,
             Evolver evolver)

Description copied from class: Format

Called for an existing format that may not equal the current format for the same class.

If this method returns true, then it must have determined one of two things: - that the old and new formats are equal, and it must have called Evolver.useOldFormat; or - that the old format can be evolved to the new format, and it must have called Evolver.useEvolvedFormat.

If this method returns false, then it must have determined that the old format could not be evolved to the new format, and it must have called Evolver.addInvalidMutation, addMissingMutation or addEvolveError.

Specified by:

evolve in class Format

newPrimitiveArray

java.lang.Object newPrimitiveArray(int len,
                                 EntityInput input)

writePrimitiveArray

void writePrimitiveArray(java.lang.Object o,
                       EntityOutput output)

getPrimitiveLength

int getPrimitiveLength()

readPrimitiveField

void readPrimitiveField(java.lang.Object o,
                      EntityInput input,
                      java.lang.reflect.Field field)
                  throws java.lang.IllegalAccessException

Throws:

java.lang.IllegalAccessException

writePrimitiveField

void writePrimitiveField(java.lang.Object o,
                       EntityOutput output,
                       java.lang.reflect.Field field)
                   throws java.lang.IllegalAccessException

Throws:

java.lang.IllegalAccessException

skipPrimitiveArray

void skipPrimitiveArray(int len,
                      RecordInput input)

copySecMultiKeyPrimitiveArray

void copySecMultiKeyPrimitiveArray(int len,
                                 RecordInput input,
                                 java.util.Set results)