Package org.apache.ignite.internal.processors.cache

Interface CacheObject

All Known Subinterfaces:

KeyCacheObject

public interface CacheObject

Field Summary

Fields

Modifier and Type	Field	Description
static byte	TYPE_BINARY
static byte	TYPE_BINARY_ENUM
static byte	TYPE_BYTE_ARR
static byte	TYPE_REGULAR

Method Summary

Modifier and Type	Method	Description
byte	cacheObjectType()
void	finishUnmarshal(CacheObjectValueContext ctx, ClassLoader ldr)
boolean	isPlatformType()	Gets flag indicating whether object value is a platform type.
default boolean	postWriteRequired()
CacheObject	prepareForCache(CacheObjectValueContext ctx)	Prepares cache object for cache (e.g. copies user-provided object if needed).
void	prepareMarshal(CacheObjectValueContext ctx)
int	putValue(long addr)
boolean	putValue(ByteBuffer buf)
boolean	putValue(ByteBuffer buf, int off, int len)
<T> T	value(CacheObjectValueContext ctx, boolean cpy)
<T> T	value(CacheObjectValueContext ctx, boolean cpy, ClassLoader ldr)	Deserializes a value from an internal representation.
byte[]	valueBytes(CacheObjectValueContext ctx)
int	valueBytesLength(CacheObjectValueContext ctx)

Field Detail

TYPE_REGULAR

static final byte TYPE_REGULAR

See Also:

Constant Field Values

TYPE_BYTE_ARR

static final byte TYPE_BYTE_ARR

See Also:

Constant Field Values

TYPE_BINARY

static final byte TYPE_BINARY

See Also:

Constant Field Values

TYPE_BINARY_ENUM

static final byte TYPE_BINARY_ENUM

See Also:

Constant Field Values

Method Detail

value

@Nullable
<T> T value(CacheObjectValueContext ctx,
            boolean cpy)

Parameters:

ctx - Context.

cpy - If true need to copy value.

Returns:

Value.

value

@Nullable
<T> T value(CacheObjectValueContext ctx,
            boolean cpy,
            ClassLoader ldr)

Deserializes a value from an internal representation.

Parameters:

ctx - Context.

cpy - If true need to copy value.

ldr - Class loader, if it is null, default class loader will be used.

Returns:

Value.

valueBytes

byte[] valueBytes(CacheObjectValueContext ctx)
           throws IgniteCheckedException

Parameters:

ctx - Context.

Returns:

Value bytes.

Throws:

IgniteCheckedException - If failed.

valueBytesLength

int valueBytesLength(CacheObjectValueContext ctx)
              throws IgniteCheckedException

Parameters:

ctx - Cache object context.

Returns:

Size required to store this value object.

Throws:

IgniteCheckedException - If failed.

putValue

boolean putValue(ByteBuffer buf)
          throws IgniteCheckedException

Parameters:

buf - Buffer to write value to.

Returns:

True if value was successfully written, false if there was not enough space in the buffer.

Throws:

IgniteCheckedException - If failed.

putValue

int putValue(long addr)
      throws IgniteCheckedException

Parameters:

addr - Address tp write value to.

Returns:

Number of bytes written.

Throws:

IgniteCheckedException - If failed.

putValue

boolean putValue(ByteBuffer buf,
                 int off,
                 int len)
          throws IgniteCheckedException

Parameters:

buf - Buffer to write value to.

off - Offset in source binary data.

len - Length of the data to write.

Returns:

True if value was successfully written, false if there was not enough space in the buffer.

Throws:

IgniteCheckedException - If failed.

cacheObjectType

byte cacheObjectType()

Returns:

Object type.

isPlatformType

boolean isPlatformType()

Gets flag indicating whether object value is a platform type. Platform types will be automatically deserialized on public API cache operations regardless whether org.apache.ignite.IgniteCache#withKeepBinary() is used or not.

Returns:

Platform type flag.

prepareForCache

CacheObject prepareForCache(CacheObjectValueContext ctx)

Prepares cache object for cache (e.g. copies user-provided object if needed).

Parameters:

ctx - Cache context.

Returns:

Instance to store in cache.

finishUnmarshal

void finishUnmarshal(CacheObjectValueContext ctx,
                     ClassLoader ldr)
              throws IgniteCheckedException

Parameters:

ctx - Context.

ldr - Class loader.

Throws:

IgniteCheckedException - If failed.

prepareMarshal

void prepareMarshal(CacheObjectValueContext ctx)
             throws IgniteCheckedException

Parameters:

ctx - Context.

Throws:

IgniteCheckedException - If failed.

postWriteRequired

default boolean postWriteRequired()

Returns:

True if postWriteHashCode call required, false otherwise.