Skip navigation links

com.tangosol.io.pof.reflect
Class AbstractPofValue

java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.io.pof.reflect.AbstractPofValue

All Implemented Interfaces:

PofValue

Direct Known Subclasses:

ComplexPofValue, SimplePofValue

public abstract class AbstractPofValue

extends ExternalizableHelper

implements PofValue

An abstract base class that implements common functionality for all PofValue types.

Since:

Coherence 3.5

Author:

as 2009.02.12

Field Summary

protected LongArray	m_arrayRefs Lazily-constructed mapping of identities to references.
protected int	m_nType POF type identifer of this value.
protected java.lang.Object	m_oValue Deserialized representation of this value.

Constructor Summary

AbstractPofValue(PofValue valueParent, ReadBuffer bufValue, PofContext ctx, int of, int nType)
Construct a PofValue instance wrapping the supplied buffer.

Method Summary

Binary	applyChanges() Apply all the changes that were made to this value and return a binary representation of the new value.
protected LongArray	ensureReferenceRegistry() Obtain the registry for identity-reference pairs, creating it if necessary.
java.math.BigDecimal	getBigDecimal() Return the BigDecimal which this PofValue represents.
java.math.BigInteger	getBigInteger() Return the BigInteger which this PofValue represents.
boolean	getBoolean() Return the boolean which this PofValue represents.
boolean[]	getBooleanArray() Return the boolean[] which this PofValue represents.
byte	getByte() Return the byte which this PofValue represents.
byte[]	getByteArray() Return the byte[] which this PofValue represents.
ReadBuffer	getChanges() Return a buffer containing changes made to this PofValue in the format defined by the BinaryDeltaCompressor.
char	getChar() Return the char which this PofValue represents.
char[]	getCharArray() Return the char[] which this PofValue represents.
java.util.Collection	getCollection(java.util.Collection coll) Return the Collection which this PofValue represents.
java.util.Date	getDate() Return the Date which this PofValue represents.
protected int	getDirtyBytesCount() Get the estimated number of dirty bytes in this POF value hierarchy.
double	getDouble() Return the double which this PofValue represents.
double[]	getDoubleArray() Return the double[] which this PofValue represents.
float	getFloat() Return the float which this PofValue represents.
float[]	getFloatArray() Return the float[] which this PofValue represents.
int	getInt() Return the int which this PofValue represents.
int[]	getIntArray() Return the int[] which this PofValue represents.
long	getLong() Return the long which this PofValue represents.
long[]	getLongArray() Return the long[] which this PofValue represents.
java.util.Map	getMap(java.util.Map map) Return the Map which this PofValue represents.
java.lang.Object[]	getObjectArray() Return the Object[] which this PofValue represents.
int	getOffset() Return the offset of this value from the beginning of POF stream.
protected ReadBuffer	getOriginalBuffer() Get the original buffer the changes should be applied to.
PofValue	getParent() Return the parent of this value.
PofContext	getPofContext() Return the POF context to use for serialization and deserialization.
protected int	getPropertyIndex()
PofValue	getRoot() Return the root of the hierarchy this value belongs to.
ReadBuffer	getSerializedValue() Return this value's serialized form.
short	getShort() Return the short which this PofValue represents.
short[]	getShortArray() Return the short[] which this PofValue represents.
int	getSize() Return the size of the encoded value in bytes.
java.lang.String	getString() Return the String which this PofValue represents.
int	getTypeId() Obtain the POF type identifier for this value.
java.lang.Object	getValue() Return the deserialized value which this PofValue represents.
java.lang.Object	getValue(java.lang.Class clz) Return the deserialized value which this PofValue represents.
java.lang.Object	getValue(int nType) Return the deserialized value which this PofValue represents.
protected ReadBuffer	getValueBuffer() Get the raw value buffer.
protected void	incrementDirtyBytesCount(int cb) Increment the counter representing the estimated number of bytes in the original buffer that have been modified.
protected void	incrementDirtyValuesCount() Increment the counter representing the number of values within this POF hierarchy that have been modified.
boolean	isDirty() Return true if this value has been modified, false otherwise.
protected boolean	isRoot() Return true if this instance is the root of the PofValue hierarchy.
protected boolean	isUniformEncoded() Return true if the buffer contains only the value, without the type identifier.
protected PofValue	lookupIdentity(int nId) Look up the specified identity and return the PofValue to which it refers.
protected void	registerIdentity(int nId, java.lang.Object oValue) Register the passed value with the passed identity.
protected void	setDecorations(long nDecoMask, ReadBuffer bufDeco) Set the decoration mask and decorations for the PofValue.
protected void	setDirty() Set the dirty flag for this value.
protected void	setOriginalBuffer(ReadBuffer bufValue) Set the original buffer the changes should be applied to.
protected void	setUniformEncoded() Specifies that the buffer contains only a value, without a type identifier.
void	setValue(java.lang.Object oValue) Update this PofValue.

Methods inherited from class com.tangosol.util.BitHelper

countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString, toBytes, toBytes, toBytes, toBytes, toInt, toInt, toLong, toLong

Methods inherited from interface com.tangosol.io.pof.reflect.PofValue

getChild

Field Detail

m_arrayRefs

protected LongArray m_arrayRefs

Lazily-constructed mapping of identities to references.

m_nType

protected int m_nType

POF type identifer of this value.

m_oValue

protected java.lang.Object m_oValue

Deserialized representation of this value.

Constructor Detail

AbstractPofValue

public AbstractPofValue(PofValue valueParent,
                        ReadBuffer bufValue,
                        PofContext ctx,
                        int of,
                        int nType)

Construct a PofValue instance wrapping the supplied buffer.

Parameters:

valueParent - parent value within the POF stream

bufValue - buffer containing POF representation of this value

ctx - POF context to use when reading or writing properties

of - offset of this value from the beginning of POF stream

nType - POF type identifier for this value

Method Detail

getTypeId

public int getTypeId()

Obtain the POF type identifier for this value.

Specified by:

getTypeId in interface PofValue

Returns:

POF type identifier for this value

getRoot

public PofValue getRoot()

Return the root of the hierarchy this value belongs to.

Specified by:

getRoot in interface PofValue

Returns:

the root value

getParent

public PofValue getParent()

Return the parent of this value.

Specified by:

getParent in interface PofValue

Returns:

the parent value, or null if this is root value

getValue

public java.lang.Object getValue()

Return the deserialized value which this PofValue represents.

Note: For primitive types such as int or boolean, the POF type is not stored in the POF stream. Therefore, for primitive types, the type or class must be explicitly specified via PofValue.getValue(int) or PofValue.getValue(Class).

Specified by:

getValue in interface PofValue

Returns:

the deserialized value

getValue

public java.lang.Object getValue(java.lang.Class clz)

Return the deserialized value which this PofValue represents.

Note: For primitive types such as int or boolean, the POF type is not stored in the POF stream. Therefore, for primitive types, the clz parameter must not be null.

Specified by:

getValue in interface PofValue

Parameters:

clz - the required class of the returned value or null if the class is to be inferred from the serialized state

Returns:

the deserialized value

getValue

public java.lang.Object getValue(int nType)

Return the deserialized value which this PofValue represents.

Note: For primitive types such as int or boolean, the POF type is not stored in the POF stream. Therefore, for primitive types, the type must be explicitly specified with the nType parameter.

Specified by:

getValue in interface PofValue

Parameters:

nType - the required POF type of the returned value or PofConstants.T_UNKNOWN if the type is to be inferred from the serialized state

Returns:

the deserialized value

setValue

public void setValue(java.lang.Object oValue)

Update this PofValue.

The changes made using this method will be immediately reflected in the result of PofValue.getValue() method, but will not be applied to the underlying POF stream until the PofValue.applyChanges() method is invoked on the root PofValue.

Specified by:

setValue in interface PofValue

Parameters:

oValue - new deserialized value for this PofValue

applyChanges

public Binary applyChanges()

Apply all the changes that were made to this value and return a binary representation of the new value.

Any format prefixes and/or decorations that were present in the original buffer this value orginated from will be preserved.

Note: this method can only be called on the root PofValue.

Specified by:

applyChanges in interface PofValue

Returns:

new Binary object that contains modified PofValue

getChanges

public ReadBuffer getChanges()

Return a buffer containing changes made to this PofValue in the format defined by the BinaryDeltaCompressor.

Note: this method can only be called on the root PofValue

Specified by:

getChanges in interface PofValue

Returns:

a buffer containing changes made to this PofValue

getBoolean

public boolean getBoolean()

Return the boolean which this PofValue represents.

Specified by:

getBoolean in interface PofValue

Returns:

the boolean value

getByte

public byte getByte()

Return the byte which this PofValue represents.

Specified by:

getByte in interface PofValue

Returns:

the byte value

getChar

public char getChar()

Return the char which this PofValue represents.

Specified by:

getChar in interface PofValue

Returns:

the char value

getShort

public short getShort()

Return the short which this PofValue represents.

Specified by:

getShort in interface PofValue

Returns:

the short value

getInt

public int getInt()

Return the int which this PofValue represents.

Specified by:

getInt in interface PofValue

Returns:

the int value

getLong

public long getLong()

Return the long which this PofValue represents.

Specified by:

getLong in interface PofValue

Returns:

the long value

getFloat

public float getFloat()

Return the float which this PofValue represents.

Specified by:

getFloat in interface PofValue

Returns:

the float value

getDouble

public double getDouble()

Return the double which this PofValue represents.

Specified by:

getDouble in interface PofValue

Returns:

the double value

getBooleanArray

public boolean[] getBooleanArray()

Return the boolean[] which this PofValue represents.

Specified by:

getBooleanArray in interface PofValue

Returns:

the boolean[] value

getByteArray

public byte[] getByteArray()

Return the byte[] which this PofValue represents.

Specified by:

getByteArray in interface PofValue

Returns:

the byte[] value

getCharArray

public char[] getCharArray()

Return the char[] which this PofValue represents.

Specified by:

getCharArray in interface PofValue

Returns:

the char[] value

getShortArray

public short[] getShortArray()

Return the short[] which this PofValue represents.

Specified by:

getShortArray in interface PofValue

Returns:

the short[] value

getIntArray

public int[] getIntArray()

Return the int[] which this PofValue represents.

Specified by:

getIntArray in interface PofValue

Returns:

the int[] value

getLongArray

public long[] getLongArray()

Return the long[] which this PofValue represents.

Specified by:

getLongArray in interface PofValue

Returns:

the long[] value

getFloatArray

public float[] getFloatArray()

Return the float[] which this PofValue represents.

Specified by:

getFloatArray in interface PofValue

Returns:

the float[] value

getDoubleArray

public double[] getDoubleArray()

Return the double[] which this PofValue represents.

Specified by:

getDoubleArray in interface PofValue

Returns:

the double[] value

getBigInteger

public java.math.BigInteger getBigInteger()

Return the BigInteger which this PofValue represents.

Specified by:

getBigInteger in interface PofValue

Returns:

the BigInteger value

getBigDecimal

public java.math.BigDecimal getBigDecimal()

Return the BigDecimal which this PofValue represents.

Specified by:

getBigDecimal in interface PofValue

Returns:

the BigDecimal value

getString

public java.lang.String getString()

Return the String which this PofValue represents.

Specified by:

getString in interface PofValue

Returns:

the String value

getDate

public java.util.Date getDate()

Return the Date which this PofValue represents.

Specified by:

getDate in interface PofValue

Returns:

the Date value

getObjectArray

public java.lang.Object[] getObjectArray()

Return the Object[] which this PofValue represents.

Specified by:

getObjectArray in interface PofValue

Returns:

the Object[] value

getCollection

public java.util.Collection getCollection(java.util.Collection coll)

Return the Collection which this PofValue represents.

Specified by:

getCollection in interface PofValue

Parameters:

coll - the optional Collection to use to store the values

Returns:

the Collection value

getMap

public java.util.Map getMap(java.util.Map map)

Return the Map which this PofValue represents.

Specified by:

getMap in interface PofValue

Parameters:

map - the optional Map to use to store the values

Returns:

the Map value

getPofContext

public PofContext getPofContext()

Return the POF context to use for serialization and deserialization.

Returns:

the POF context

getOffset

public int getOffset()

Return the offset of this value from the beginning of POF stream.

Returns:

the offset of this value from the beginning of POF stream

getSize

public int getSize()

Return the size of the encoded value in bytes.

Returns:

the size of the encoded value

isDirty

public boolean isDirty()

Return true if this value has been modified, false otherwise.

Returns:

true if this value has been modified, false otherwise

setDirty

protected void setDirty()

Set the dirty flag for this value.

getSerializedValue

public ReadBuffer getSerializedValue()

Return this value's serialized form.

Returns:

this value's serialized form

getPropertyIndex

protected int getPropertyIndex()

getOriginalBuffer

protected ReadBuffer getOriginalBuffer()

Get the original buffer the changes should be applied to.

Returns:

buffer containing the original value

setOriginalBuffer

protected void setOriginalBuffer(ReadBuffer bufValue)

Set the original buffer the changes should be applied to.

Parameters:

bufValue - buffer containing the original value

ensureReferenceRegistry

protected LongArray ensureReferenceRegistry()

Obtain the registry for identity-reference pairs, creating it if necessary.

Returns:

the identity-reference registry, never null

registerIdentity

protected void registerIdentity(int nId,
                                java.lang.Object oValue)

Register the passed value with the passed identity.

Parameters:

nId - the identity within the POF stream of the object

oValue - the object to associate with the passed identity

Throws:

java.lang.IllegalArgumentException - if the specified identity is already registered with a different object

lookupIdentity

protected PofValue lookupIdentity(int nId)
                           throws java.io.IOException

Look up the specified identity and return the PofValue to which it refers.

Parameters:

nId - the identity

Returns:

the object registered under that identity

Throws:

java.io.IOException - if the requested identity is not registered

getValueBuffer

protected ReadBuffer getValueBuffer()

Get the raw value buffer.

Returns:

buffer containing the raw value

setDecorations

protected void setDecorations(long nDecoMask,
                              ReadBuffer bufDeco)

Set the decoration mask and decorations for the PofValue.

Parameters:

nDecoMask - decoration identifiers bit mask

bufDeco - buffer containing the decorations

isRoot

protected boolean isRoot()

Return true if this instance is the root of the PofValue hierarchy.

Returns:

true if this is the root value

isUniformEncoded

protected boolean isUniformEncoded()

Return true if the buffer contains only the value, without the type identifier.

Returns:

true if the buffer contains only the value

setUniformEncoded

protected void setUniformEncoded()

Specifies that the buffer contains only a value, without a type identifier.

getDirtyBytesCount

protected int getDirtyBytesCount()

Get the estimated number of dirty bytes in this POF value hierarchy.

Returns:

the number of dirty bytes

incrementDirtyValuesCount

protected void incrementDirtyValuesCount()

Increment the counter representing the number of values within this POF hierarchy that have been modified.

incrementDirtyBytesCount

protected void incrementDirtyBytesCount(int cb)

Increment the counter representing the estimated number of bytes in the original buffer that have been modified.

Parameters:

cb - the number of bytes to increment counter for

Skip navigation links