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oracle.ord.im
Class OrdImage

java.lang.Object
oracle.ord.im.OrdImageBase
oracle.ord.im.OrdImage

All Implemented Interfaces:

oracle.jdbc.internal.ObjectData, oracle.jdbc.internal.ObjectDataFactory, oracle.sql.CustomDatum, oracle.sql.ORAData, oracle.sql.ORADataFactory

public class OrdImage

extends oracle.ord.im.OrdImageBase

The OrdImage class is used to represent an instance of the ORDSYS.ORDImage database type in a Java application. The OrdImage class includes a set of methods to get and set various object attributes, as well as a set of methods to perform various operations on an OrdImage Java object.

Users of this class should be familiar with Oracle Multimedia Reference.

Almost all methods operate on the attributes of the OrdImage Java object in the application. The exceptions are those methods that access the image data for read or write purposes, which are described in the following list:

• Methods that operate on the database BLOB specified by the localData attribute, read and write data stored in the database BLOB.
• Methods that operate on the database BFILE specified by the srcLocation and srcName attributes when the value of the srcType attribute is file, read data from the specified file.
• Methods that operate on the URL specified by the srcType, srcLocation, and srcName attributes when the value of the srcType attribute is http, read data from the resource at the specified URL.

If your application modifies the OrdImage Java object, or the image data in the database, you must update the ORDImage SQL object in the database to make those changes permanent.

Some methods in the OrdImage Java class are handed off to a database source plug-in for processing; these methods have byte [] ctx [] as a context parameter. Applications should allocate a 64-byte array to hold any context information that may be required by a source plug-in. For example, a plug-in may initialize the context information in one call and use that information in a subsequent call. For most plug-ins, 64 bytes should be sufficient. Some user-defined plug-ins may need additional space. The following example shows how to allocate a plug-in context information array:

    byte [] ctx [] = new byte[1][64];

Note

In the current release, no Oracle-supplied source plug-ins maintain context. Also, not all user-written source plug-ins maintain context. However, if you include the context parameter as described, your application should work with any current or future source plug-ins.

See Oracle Multimedia Reference for more information about plug-ins.

Prerequisites

In order to run OrdImage methods, you will need to include the following import statements in your Java file:

 import oracle.ord.im.OrdMediaUtil;
 import oracle.ord.im.OrdImage; 

You may also need to import classes from the following Java packages:

 java.io.
 java.sql. 
 oracle.jdbc.

Before running OrdImage methods, the following operations must have already been performed:

• A connection has been made to a table that contains a column of type OrdImage.
• A local OrdImage object has been created and populated with data.

For examples of making a connection and populating a local object, see Oracle Multimedia User's Guide.

Field Summary

Fields inherited from class oracle.ord.im.OrdImageBase

_SQL_NAME, _SQL_TYPECODE

Constructor Summary

OrdImage()
Deprecated.

Method Summary

boolean	checkProperties() Checks if the properties of the image data are consistent with the attributes of the OrdImage Java object.
void	clearLocal() Clears the local attribute to indicate that the image data is stored externally.
void	copy(OrdImage dest) Copies an OrdImage Java object.
void	deleteContent() Deletes any data stored in the database BLOB specified by the localData attribute.
void	export(byte[][] ctx, java.lang.String srcType, java.lang.String srcLocation, java.lang.String srcName) Exports the data from the BLOB specified by the localData attribute.
oracle.sql.BFILE	getBFILE() Returns a BFILE locator from the database when the value of the srcType attribute is file.
java.lang.String	getCompressionFormat() Returns the value of the compressionFormat attribute.
oracle.sql.BLOB	getContent() Returns the BLOB locator from the localData attribute.
java.lang.String	getContentFormat() Returns the value of the contentFormat attribute.
int	getContentLength() Returns the value of the contentLength attribute.
byte[]	getDataInByteArray() Returns a byte array containing the data from the database BLOB specified by the localData attribute.
boolean	getDataInFile(java.lang.String filename) Writes the data from the database BLOB specified by the localData attribute to a local file.
java.io.InputStream	getDataInStream() Returns an InputStream object from which the data in the database BLOB specified by the localData attribute can be read.
oracle.xdb.XMLType	getDicomMetadata(java.lang.String optionString) Returns an XML representation of the metadata extracted from the DICOM image stored in the OrdImage object.
static oracle.sql.CustomDatumFactory	getFactory() Deprecated. New applications should use the getORADataFactory method.
java.lang.String	getFormat() Returns the value of the fileFormat attribute.
int	getHeight() Returns the value of the height attribute.
oracle.xdb.XMLType[]	getMetadata(java.lang.String metadataType) Extracts metadata information from the image as specified by the metadataType parameter.
java.lang.String	getMimeType() Returns the value of the mimeType attribute.
static oracle.sql.ORADataFactory	getORADataFactory() Returns the OrdImage ORADataFactory interface for use by the getORAData method.
java.lang.String	getSource() Returns the source information in the form srcType://srcLocation/srcName.
java.lang.String	getSourceLocation() Returns the value of the srcLocation attribute.
java.lang.String	getSourceName() Returns the value of the srcName attribute.
java.lang.String	getSourceType() Returns the value of the srcType attribute.
java.sql.Timestamp	getUpdateTime() Returns the value of the updateTime attribute.
int	getWidth() Returns the value of the width attribute.
void	importData(byte[][] ctx) Imports data from an external source into the database BLOB specified by the localData attribute.
void	importFrom(byte[][] ctx, java.lang.String srcType, java.lang.String srcLocation, java.lang.String srcName) Imports data from an external source into the database BLOB specified by the localData attribute.
boolean	isConnectionNull() Returns whether the underlying database connection is null.
boolean	isLocal() Indicates if the image data is stored locally in the database in a BLOB specified by the localData attribute.
boolean	loadDataFromByteArray(byte[] byteArr) Loads data from a byte array into the database BLOB specified by the localData attribute.
boolean	loadDataFromFile(java.lang.String filename) Loads data from a file into the database BLOB specified by the localData attribute.
boolean	loadDataFromInputStream(java.io.InputStream inpStream) Loads data from an InputStream object into the database BLOB specified by the localData attribute.
void	process(java.lang.String cmd) Performs one or more image processing operations on the image data in the database BLOB specified by the localData attribute.
void	processCopy(java.lang.String cmd, OrdImage dest) Copies the image data to the destination object and performs one or more image processing operations on the image data.
void	putMetadata(oracle.xdb.XMLType xmlData, java.lang.String metadataType, java.lang.String encoding) Embeds the metadata contained in the XML document into the image.
void	setCompressionFormat(java.lang.String compressionFormat) Sets the value of the compressionFormat attribute.
void	setContentFormat(java.lang.String contentFormat) Sets the value of the contentFormat attribute.
void	setContentLength(int contentLength) Sets the value of the contentLength attribute.
void	setFormat(java.lang.String fileFormat) Sets the value of the fileFormat attribute.
void	setHeight(int height) Sets the value of the height attribute.
void	setLocal() Sets the value of the local attribute to indicate that the image data is stored locally in the database in a BLOB specified by the localData attribute.
void	setMimeType(java.lang.String mimeType) Sets the value of the mimeType attribute.
void	setProperties() Parses the image data properties and sets the values of the attributes in the OrdImage Java object.
void	setProperties(java.lang.String description) Writes the characteristics of a foreign image into the appropriate attribute fields.
void	setSource(java.lang.String srcType, java.lang.String srcLocation, java.lang.String srcName) Sets the values of the srcType, srcLocation, and srcName attributes.
void	setUpdateTime(java.sql.Timestamp currentTime) Sets the value of the updateTime attribute.
void	setWidth(int width) Sets the value of the width attribute.

Methods inherited from class oracle.ord.im.OrdImageBase

create, toDatum, toDatum

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OrdImage

public OrdImage()

Deprecated.

Exists as an internal constructor used only by the Oracle ORAData interface factory method to create an instance of the class. Applications should not use this constructor.

Method Detail

isLocal

public boolean isLocal()
                throws java.sql.SQLException

Indicates if the image data is stored locally in the database in a BLOB specified by the localData attribute.

Returns:

true if the data is stored locally in the database in a BLOB; false otherwise.

Throws:

java.sql.SQLException - if an error occurs accessing the local attribute.

setLocal

public void setLocal()
              throws java.sql.SQLException

Sets the value of the local attribute to indicate that the image data is stored locally in the database in a BLOB specified by the localData attribute.

Throws:

java.sql.SQLException - if an error occurs accessing the local attribute.

clearLocal

public void clearLocal()
                throws java.sql.SQLException

Clears the local attribute to indicate that the image data is stored externally.

Throws:

java.sql.SQLException - if an error occurs accessing the local attribute.

getSourceType

public java.lang.String getSourceType()
                               throws java.sql.SQLException

Returns the value of the srcType attribute.

Returns:

the value of the srcType attribute, as a String.

Throws:

java.sql.SQLException - if an error occurs accessing the srcType attribute.

getSourceLocation

public java.lang.String getSourceLocation()
                                   throws java.sql.SQLException

Returns the value of the srcLocation attribute.

Returns:

the value of the srcLocation attribute, as a String.

Throws:

java.sql.SQLException - if an error occurs accessing the srcLocation attribute.

getSourceName

public java.lang.String getSourceName()
                               throws java.sql.SQLException

Returns the value of the srcName attribute.

Returns:

the value of the srcName attribute, as a String.

Throws:

java.sql.SQLException - if an error occurs accessing the srcName attribute.

getSource

public java.lang.String getSource()
                           throws java.sql.SQLException

Returns the source information in the form srcType://srcLocation/srcName.

Returns:

the source information, as a String.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding getSource method in the database.

setSource

public void setSource(java.lang.String srcType,
                      java.lang.String srcLocation,
                      java.lang.String srcName)
               throws java.sql.SQLException

Sets the values of the srcType, srcLocation, and srcName attributes.

Parameters:

srcType - the type of the source.

srcLocation - the location of the source.

srcName - the name of the source.

Throws:

java.sql.SQLException - if an error occurs accessing the srcType, srcLocation, or srcName attributes.

getUpdateTime

public java.sql.Timestamp getUpdateTime()
                                 throws java.sql.SQLException

Returns the value of the updateTime attribute.

Returns:

the value of the updateTime attribute, as a java.sql.Timestamp object.

Throws:

java.sql.SQLException - if an error occurs accessing the updateTime attribute.

setUpdateTime

public void setUpdateTime(java.sql.Timestamp currentTime)
                   throws java.sql.SQLException

Sets the value of the updateTime attribute. This method sets the value of the updateTime attribute to the specified time, or to the current SYSDATE time if the currentTime attribute value is specified as null.

Parameters:

currentTime - the update time or the null value, used to set the value of the updateTime attribute to the current SYSDATE time.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding setUpdateTime method in the database.

getContent

public oracle.sql.BLOB getContent()
                           throws java.sql.SQLException

Returns the BLOB locator from the localData attribute.

Returns:

an oracle.sql.BLOB locator.

Throws:

java.sql.SQLException - if an error occurs accessing the localData attribute.

getBFILE

public oracle.sql.BFILE getBFILE()
                          throws java.sql.SQLException

Returns a BFILE locator from the database when the value of the srcType attribute is file. This method calls the corresponding getBFILE method in the database, which creates the BFILE using the srcLocation and srcName attributes.

Returns:

an oracle.sql.BFILE locator.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding getBFILE method in the database.

getHeight

public int getHeight()
              throws java.sql.SQLException

Returns the value of the height attribute.

Returns:

the value of the height attribute, as an integer (int).

Throws:

java.sql.SQLException - if an error occurs accessing the height attribute.

setHeight

public void setHeight(int height)
               throws java.sql.SQLException

Sets the value of the height attribute.

The setProperties() method sets the value of this attribute automatically for certain image formats; use this method only if you are not using the setProperties method. This method sets only the attribute value; it does not modify the image data itself.

Parameters:

height - the new attribute value.

Throws:

java.sql.SQLException - if an error occurs accessing the height attribute.

getWidth

public int getWidth()
             throws java.sql.SQLException

Returns the value of the width attribute.

Returns:

the value of the width attribute, as an integer (int).

Throws:

java.sql.SQLException - if an error occurs accessing the width attribute.

setWidth

public void setWidth(int width)
              throws java.sql.SQLException

Sets the value of the width attribute.

The setProperties() method sets the value of this attribute automatically for certain image formats; use this method only if you are not using the setProperties method. This method sets only the attribute value; it does not modify the image data itself.

Parameters:

width - the new attribute value.

Throws:

java.sql.SQLException - if an error occurs accessing the width attribute.

getContentLength

public int getContentLength()
                     throws java.sql.SQLException

Returns the value of the contentLength attribute.

Returns:

the value of the contentLength attribute, as an integer (int).

Throws:

java.sql.SQLException - if an error occurs accessing the contentLength attribute.

setContentLength

public void setContentLength(int contentLength)
                      throws java.sql.SQLException

Sets the value of the contentLength attribute.

The setProperties() method sets the value of this attribute automatically for certain image formats; use this method only if you are not using the setProperties method. This method sets only the attribute value; it does not modify the image data itself.

Parameters:

contentLength - the new attribute value.

Throws:

java.sql.SQLException - if an error occurs accessing the contentLength attribute.

getFormat

public java.lang.String getFormat()
                           throws java.sql.SQLException

Returns the value of the fileFormat attribute.

Returns:

the value of the fileFormat attribute, as a String.

Throws:

java.sql.SQLException - if an error occurs accessing the fileFormat attribute.

setFormat

public void setFormat(java.lang.String fileFormat)
               throws java.sql.SQLException

Sets the value of the fileFormat attribute.

The setProperties() method sets the value of this attribute automatically for certain image formats; use this method only if you are not using the setProperties method. This method sets only the attribute value; it does not modify the image data itself. Set the value of the fileFormat attribute to a String beginning with other to disable the automatic call to the setProperties method by the importData and importFrom methods.

Parameters:

fileFormat - the new attribute value.

Throws:

java.sql.SQLException - if an error occurs accessing the fileFormat attribute.

getContentFormat

public java.lang.String getContentFormat()
                                  throws java.sql.SQLException

Returns the value of the contentFormat attribute.

Returns:

the value of the contentFormat attribute, as a String.

Throws:

java.sql.SQLException - if an error occurs accessing the contentFormat attribute.

setContentFormat

public void setContentFormat(java.lang.String contentFormat)
                      throws java.sql.SQLException

Sets the value of the contentFormat attribute.

The setProperties() method sets the value of this attribute automatically for certain image formats; use this method only if you are not using the setProperties method. This method sets only the attribute value; it does not modify the image data itself.

Parameters:

contentFormat - the new attribute value.

Throws:

java.sql.SQLException - if an error occurs accessing the contentFormat attribute.

getCompressionFormat

public java.lang.String getCompressionFormat()
                                      throws java.sql.SQLException

Returns the value of the compressionFormat attribute.

Returns:

the value of the compressionFormat attribute, as a String.

Throws:

java.sql.SQLException - if an error occurs accessing the compressionFormat attribute.

setCompressionFormat

public void setCompressionFormat(java.lang.String compressionFormat)
                          throws java.sql.SQLException

Sets the value of the compressionFormat attribute.

The setProperties() method sets the value of this attribute automatically for certain image formats; use this method only if you are not using the setProperties method. This method sets only the attribute value; it does not modify the image data itself.

Parameters:

compressionFormat - the new attribute value.

Throws:

java.sql.SQLException - if an error occurs accessing the compressionFormat attribute.

getMimeType

public java.lang.String getMimeType()
                             throws java.sql.SQLException

Returns the value of the mimeType attribute.

Returns:

the value of the mimeType attribute, as a String.

Throws:

java.sql.SQLException - if an error occurs accessing the mimeType attribute.

setMimeType

public void setMimeType(java.lang.String mimeType)
                 throws java.sql.SQLException

Sets the value of the mimeType attribute.

The setProperties() method sets the value of this attribute automatically for certain image formats; use this method only if you are not using the setProperties method. This method sets only the attribute value; it does not modify the image data itself.

Parameters:

mimeType - the new attribute value.

Throws:

java.sql.SQLException - if an error occurs accessing the mimeType attribute.

loadDataFromFile

public boolean loadDataFromFile(java.lang.String filename)
                         throws java.sql.SQLException,
                                java.io.IOException

Loads data from a file into the database BLOB specified by the localData attribute. Before loading the data, this method calls the deleteContent() method to delete any existing data in the BLOB. It also calls the setLocal() method to set the local flag. In addition, this method calls the setUpdateTime(java.sql.Timestamp) method to set the value of the updateTime attribute to the current SYSDATE time.

Parameters:

filename - the name of the file from which the data will be loaded.

Returns:

true if the data is loaded successfully; otherwise, an exception is raised if an error occurs. This method never returns false.

Throws:

java.sql.SQLException - if an error occurs accessing an object attribute or executing a method in the database.

java.io.IOException - if an error occurs reading the data file.

loadDataFromInputStream

public boolean loadDataFromInputStream(java.io.InputStream inpStream)
                                throws java.sql.SQLException,
                                       java.io.IOException

Loads data from an InputStream object into the database BLOB specified by the localData attribute. Before loading the data, this method calls the deleteContent() method to delete any existing data in the BLOB. It also calls the setLocal() method to set the local flag. In addition, this method calls the setUpdateTime(java.sql.Timestamp) method to set the value of the updateTime attribute to the current SYSDATE time.

Parameters:

inpStream - the name of the InputStream object from which the data will be loaded.

Returns:

true if the data is loaded successfully; otherwise, an exception is raised if an error occurs. This method never returns false.

Throws:

java.sql.SQLException - if an error occurs accessing an object attribute or executing a method in the database.

java.io.IOException - if an error occurs reading the InputStream object.

loadDataFromByteArray

public boolean loadDataFromByteArray(byte[] byteArr)
                              throws java.sql.SQLException,
                                     java.io.IOException

Loads data from a byte array into the database BLOB specified by the localData attribute. Before loading the data, this method calls the deleteContent() method to delete any existing data in the BLOB. It also calls the setLocal() method to set the local flag. In addition, this method calls the setUpdateTime(java.sql.Timestamp) method to set the value of the updateTime attribute to the current SYSDATE time.

Parameters:

byteArr - the name of the local byte[] array from which the data will be loaded.

Returns:

true if the data is loaded successfully; otherwise, an exception is raised if an error occurs. This method never returns false.

Throws:

java.sql.SQLException - if an error occurs accessing an object attribute or executing a method in the database.

java.io.IOException - if an error occurs reading the byte array.

getDataInFile

public boolean getDataInFile(java.lang.String filename)
                      throws java.sql.SQLException,
                             java.io.IOException

Writes the data from the database BLOB specified by the localData attribute to a local file.

Parameters:

filename - the name of the file to which the data will be written.

Returns:

true if the data is written to the file successfully; otherwise, an exception is raised if an error occurs. This method never returns false.

Throws:

java.sql.SQLException - if an error occurs accessing an object attribute.

java.io.IOException - if an error occurs reading the data from the BLOB or writing the data to the output file.

getDataInStream

public java.io.InputStream getDataInStream()
                                    throws java.sql.SQLException

Returns an InputStream object from which the data in the database BLOB specified by the localData attribute can be read.

Returns:

an InputStream object from which the data will be read.

Throws:

java.sql.SQLException - if an error occurs accessing an object attribute.

getDataInByteArray

public byte[] getDataInByteArray()
                          throws java.sql.SQLException,
                                 java.io.IOException,
                                 java.lang.OutOfMemoryError

Returns a byte array containing the data from the database BLOB specified by the localData attribute.

Returns:

a byte[] array containing the data.

Throws:

java.sql.SQLException - if an error occurs accessing an object attribute.

java.io.IOException - if an error occurs reading the data from the BLOB.

java.lang.OutOfMemoryError - if sufficient memory cannot be allocated to hold the data.

deleteContent

public void deleteContent()
                   throws java.sql.SQLException

Deletes any data stored in the database BLOB specified by the localData attribute.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding deleteContent method in the database.

importData

public void importData(byte[][] ctx)
                throws java.sql.SQLException

Imports data from an external source into the database BLOB specified by the localData attribute. The external data source is specified by the srcType, srcLocation, and srcName attributes. After importing the image data, by default, this method automatically calls the setProperties method in the database to set the values of the property attributes. If you are importing a foreign image whose format is not understood by Oracle Multimedia, call the setFormat(java.lang.String) method to set the value of the fileFormat attribute to a String beginning with other to disable the automatic call to the setProperties method.

Parameters:

ctx - the source plug-in context information.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding import method or the setProperties method in the database.

importFrom

public void importFrom(byte[][] ctx,
                       java.lang.String srcType,
                       java.lang.String srcLocation,
                       java.lang.String srcName)
                throws java.sql.SQLException

Imports data from an external source into the database BLOB specified by the localData attribute. The external data source is specified by the srcType, srcLocation, and srcName parameters. The srcType, srcLocation, and srcName attributes are updated with values of the srcType, srcLocation, and srcName parameters passed to the importFrom method. After importing the image data, by default, this method automatically calls the setProperties method in the database to set the values of the property attributes. If you are importing a foreign image whose format is not understood by Oracle Multimedia, call the setFormat(java.lang.String) method to set the value of the fileFormat attribute to other to disable the automatic call to the setProperties method.

Parameters:

ctx - the source plug-in context information.

srcType - the source type from which the data will be imported.

srcLocation - the source location from which the data will be imported.

srcName - the source name from which the data will be imported.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding importFrom method or the setProperties method in the database.

export

public void export(byte[][] ctx,
                   java.lang.String srcType,
                   java.lang.String srcLocation,
                   java.lang.String srcName)
            throws java.sql.SQLException

Exports the data from the BLOB specified by the localData attribute. This method calls the corresponding export method in the database to export the image data to a location specified by the srcType, srcLocation, and srcName parameters.

Not all source plug-ins support the export method. For example, the "file" source type is the only Oracle-supplied source type that supports the export method.

This method will work only if you are running Oracle release 8.1.7 or later.

The remainder of this description describes the use of the export method and the Oracle-supplied "file" source plug-in. User-written plug-ins will behave differently.

The export method implemented by the Oracle-supplied "file" source plug-in copies, but does not modify, the image data stored in the database BLOB specified by the localData attribute.

After exporting the image data, all the image property attributes remain unchanged. However, the srcType, srcLocation, and srcName attributes are updated with values of the srcType, srcLocation, and srcName parameters passed to the export method. After calling the export method, if you no longer intend to manage the image data within the database, call the clearLocal() method to indicate the image data is stored outside the database, and call the deleteContent() method to delete the image data stored in the database BLOB.

See Oracle Multimedia Reference for information about the privileges required to write to a database directory object. See Oracle Database Java Developer's Guide and the java.io.FilePermission class in the Java API for information about security and performance.

Parameters:

ctx - the source plug-in context information.

srcType - the source type to which the content will be exported.

srcLocation - the source location to which the content will be exported.

srcName - the source name to which the content will be exported.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding export method in the database.

setProperties

public void setProperties()
                   throws java.sql.SQLException

Parses the image data properties and sets the values of the attributes in the OrdImage Java object. This method sets the values of the height, width, contentLength, fileFormat, contentFormat, compressionFormat, and mimeType attributes. An attribute value is set to null if the corresponding property cannot be extracted for a specific image format. This method throws a SQLException error if the image format is not recognized.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding setProperties method in the database.

setProperties

public void setProperties(java.lang.String description)
                   throws java.sql.SQLException

Writes the characteristics of a foreign image into the appropriate attribute fields. This method sets the values of various attributes of the OrdImage object, based on a set of characteristics that describes the image properties. With this information, Oracle Multimedia is able to process certain foreign image formats. For more information on setting image characteristics for foreign images, see Oracle Multimedia Reference.

Parameters:

description - a String that specifies the image characteristics to set for the foreign image.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding setProperties method in the database.

checkProperties

public boolean checkProperties()
                        throws java.sql.SQLException

Checks if the properties of the image data are consistent with the attributes of the OrdImage Java object.

Returns:

true if the properties of the image data are consistent with the attributes of the OrdImage Java object; false otherwise.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding checkProperties method in the database.

process

public void process(java.lang.String cmd)
             throws java.sql.SQLException

Performs one or more image processing operations on the image data in the database BLOB specified by the localData attribute. This method calls the corresponding process method in the database to perform the image processing operations specified by the cmd parameter.

See Oracle Multimedia Reference for more information on the various image processing operations that can be performed on an image.

Parameters:

cmd - a String that specifies a list of image processing operations to perform on the image.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding process method in the database.

getDicomMetadata

public oracle.xdb.XMLType getDicomMetadata(java.lang.String optionString)
                                    throws java.sql.SQLException

Returns an XML representation of the metadata extracted from the DICOM image stored in the OrdImage object.

See the following appendixes in Oracle Multimedia Reference:

• Appendix F for information on the XML schema definition (XSD)
• Appendix G for details about exceptions
• Appendix I for a list of DICOM encoding rules

See Oracle Multimedia User's Guide for more information about the DICOM feature.

Parameters:

optionString - a String that specifies the type of DICOM metadata to extract. For this release, the only valid value is imageGeneral. All other values are ignored.

Throws:

java.sql.SQLException - if an error occurs executing the corresponding getDicomMetadata method in the database.

copy

public void copy(OrdImage dest)
          throws java.sql.SQLException

Copies an OrdImage Java object. This method calls the corresponding copy method in the database. The copy method copies all the attributes of the current OrdImage object to the destination OrdImage object with the exception of the BLOB specified by the localData attribute. If the image data is stored locally in the database, then the data is copied from the BLOB specified by localData attribute in the current OrdImage object to the BLOB specified by the localData attribute in the destination object.

Parameters:

dest - the destination OrdImage object to which the data will be copied.

Throws:

java.sql.SQLException - if an error occurs calling the corresponding copy method in the database.

processCopy

public void processCopy(java.lang.String cmd,
                        OrdImage dest)
                 throws java.sql.SQLException

Copies the image data to the destination object and performs one or more image processing operations on the image data. If the source image data is stored externally to the database, then it is imported into the database BLOB specified by the localData attribute in the destination OrdImage object. Otherwise, the image data is copied from the BLOB specified by localData attribute in the current OrdImage object to the BLOB specified by the localData attribute in the destination object.

Parameters:

cmd - a String that specifies a list of image processing operations to perform on the image.

dest - the destination OrdImage object.

Throws:

java.sql.SQLException - if an error occurs calling the corresponding processCopy method in the database.

getMetadata

public oracle.xdb.XMLType[] getMetadata(java.lang.String metadataType)
                                 throws java.sql.SQLException

Extracts metadata information from the image as specified by the metadataType parameter. The metadata is returned as an array of schema valid XML documents.

See Oracle Multimedia User's Guide and Oracle Multimedia Reference for more information about the metadata feature.

Parameters:

metadataType - a String that specifies the types of embedded metadata to extract. Valid values are ALL, ORDIMAGE, XMP, EXIF, and IPTC-IIM.

Returns:

an XMLType array containing the requested metadata.

Throws:

java.sql.SQLException - if an error occurs extracting the metadata.

putMetadata

public void putMetadata(oracle.xdb.XMLType xmlData,
                        java.lang.String metadataType,
                        java.lang.String encoding)
                 throws java.sql.SQLException

Embeds the metadata contained in the XML document into the image.

This method accepts a schema valid XML document and creates a binary packet suitable for embedding in the target image file format. The packet is encoded according to the value of the encoding parameter. If the value of the metadataType parameter is XMP, a new Extensible Metadata Platform (XMP) packet is written to the image, replacing any existing XMP packets.

See Oracle Multimedia User's Guide and Oracle Multimedia Reference for more information about the metadata feature.

Parameters:

xmlData - an instance of oracle.xdb.XMLType. The XML document must be schema valid for the indicated metadataType parameter. If the value of the metadataType parameter is XMP, the root element should contain a well-formed Resource Description Framework (RDF) document.

metadataType - a String that specifies the type of metadata to be written. The valid value is XMP.

encoding - a String that specifies the character encoding to be used in the image file. Valid values are UTF-8, UTF-16, UTF-16BE, and UTF-16LE. UTF-16 is the same as UTF-16BE.

Throws:

java.sql.SQLException - if an error occurs writing the metadata.

getORADataFactory

public static oracle.sql.ORADataFactory getORADataFactory()

Returns the OrdImage ORADataFactory interface for use by the getORAData method. Specify the getORADataFactory method as the factory parameter of the getORAData method when retrieving an OrdImage object from an OracleResultSet or OracleCallableStatement object.

Returns:

the OrdImage implementation of the ORADataFactory interface.

getFactory

public static oracle.sql.CustomDatumFactory getFactory()

Deprecated. New applications should use the getORADataFactory method.

isConnectionNull

public boolean isConnectionNull()
                         throws java.sql.SQLException

Returns whether the underlying database connection is null.

Returns:

true if the underlying database connection is null; false otherwise.

Throws:

java.sql.SQLException - if an error occurs accessing the connection.

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