org.knime.core.data.image.png
Class PNGImageCell

java.lang.Object
  org.knime.core.data.DataCell
      org.knime.core.data.image.png.PNGImageCell

All Implemented Interfaces:

Serializable, DataValue, ImageValue, PNGImageValue

public class PNGImageCell
extends DataCell
implements PNGImageValue

Default implementation of a PNG image cell.

Author:

Thomas Gabriel, KNIME.com AG, Zurich

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.knime.core.data.image.png.PNGImageValue

PNGImageValue.ImageCellUtilityFactory

Nested classes/interfaces inherited from interface org.knime.core.data.DataValue

DataValue.UtilityFactory

Field Summary

Fields inherited from interface org.knime.core.data.image.png.PNGImageValue

UTILITY

Constructor Summary

PNGImageCell(PNGImageContent content)
Package scope method to create PNG image cell.

Method Summary

protected boolean	equalsDataCell(DataCell dc) Derived classes implement their specific equals function here.
static DataCellSerializer<PNGImageCell>	getCellSerializer() Serializer as required by parent class.
PNGImageContent	getImageContent() Get content of this image.
String	getImageExtension()
static Class<? extends DataValue>	getPreferredValueClass()
int	hashCode() This method must be implemented in order to ensure that two equal DataCell objects return the same hash code.
String	toString() Returns the String representation of this cell's value.

Methods inherited from class org.knime.core.data.DataCell

equals, getType, isMissing

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PNGImageCell

PNGImageCell(PNGImageContent content)

Package scope method to create PNG image cell. Used from the PNGImageContent.toImageCell() method.

Parameters:

content - The content to wrap.

Method Detail

getPreferredValueClass

public static Class<? extends DataValue> getPreferredValueClass()

Returns:

PNGImageValue.class

getCellSerializer

public static DataCellSerializer<PNGImageCell> getCellSerializer()

Serializer as required by parent class.

Returns:

A serializer for reading/writing cells of this kind.

getImageContent

public PNGImageContent getImageContent()

Get content of this image.

Specified by:

getImageContent in interface ImageValue

Specified by:

getImageContent in interface PNGImageValue

Returns:

The image content, never null.

toString

public String toString()

Returns the String representation of this cell's value.

Specified by:

toString in class DataCell

Returns:

a String representation of this cell's value

equalsDataCell

protected boolean equalsDataCell(DataCell dc)

Derived classes implement their specific equals function here. The argument is guaranteed to be not null or a missing value, to be of the same class like this.

Specified by:

equalsDataCell in class DataCell

Parameters:

dc - the cell to compare this to

Returns:

true if this is equal to the argument, false if not

hashCode

public int hashCode()

This method must be implemented in order to ensure that two equal DataCell objects return the same hash code.

Specified by:

hashCode in class DataCell

Returns:

the hash code of your specific DataCell

See Also:

Object.hashCode(), DataCell.equals(java.lang.Object)

getImageExtension

public String getImageExtension()

Specified by:

getImageExtension in interface ImageValue

Returns:

extension of the image