org.geotools.image.jai
Class CombineDescriptor

java.lang.Object
  javax.media.jai.OperationDescriptorImpl
      org.geotools.image.jai.CombineDescriptor

All Implemented Interfaces:

javax.media.jai.OperationDescriptor, javax.media.jai.RegistryElementDescriptor, java.io.Serializable

public class CombineDescriptor

extends javax.media.jai.OperationDescriptorImpl

The operation descriptor for the Combine operation. While this descriptor declares to support 0 RenderedImage sources, an arbitrary amount of sources can really be specified. The "0" should be understood as the minimal number of sources required.

Since:

2.1

Version:

$Id: CombineDescriptor.java 17672 2006-01-19 00:25:55Z desruisseaux $

Author:

Remi Eve, Martin Desruisseaux

See Also:

Serialized Form

Field Summary

static java.lang.String

OPERATION_NAME The operation name, which is "org.geotools.Combine".

Fields inherited from class javax.media.jai.OperationDescriptorImpl

resources, sourceNames, supportedModes

Fields inherited from interface javax.media.jai.OperationDescriptor

NO_PARAMETER_DEFAULT

Constructor Summary

CombineDescriptor()
Constructs the descriptor.

Method Summary

protected boolean	validateParameters(java.lang.String modeName, java.awt.image.renderable.ParameterBlock param, java.lang.StringBuffer message) Returns if the parameters are valids.
protected boolean	validateSources(java.lang.String modeName, java.awt.image.renderable.ParameterBlock param, java.lang.StringBuffer message) Returns if this operation supports the specified mode, and is capable of handling the given input source(s) for the specified mode.

Methods inherited from class javax.media.jai.OperationDescriptorImpl

arePropertiesSupported, getDefaultSourceClass, getDestClass, getDestClass, getInvalidRegion, getName, getNumParameters, getNumSources, getParamClasses, getParamDefaults, getParamDefaultValue, getParameterListDescriptor, getParamMaxValue, getParamMinValue, getParamNames, getPropertyGenerators, getPropertyGenerators, getRenderableDestClass, getRenderableSourceClasses, getResourceBundle, getResources, getSourceClasses, getSourceClasses, getSourceNames, getSupportedModes, isImmediate, isModeSupported, isRenderableSupported, isRenderedSupported, makeDefaultSourceClassList, validateArguments, validateArguments, validateParameters, validateRenderableArguments, validateRenderableSources, validateSources

Methods inherited from class java.lang.Object

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

Field Detail

OPERATION_NAME

public static final java.lang.String OPERATION_NAME

The operation name, which is "org.geotools.Combine".

See Also:

Constant Field Values

Constructor Detail

CombineDescriptor

public CombineDescriptor()

Constructs the descriptor.

Method Detail

validateSources

protected boolean validateSources(java.lang.String modeName,
                                  java.awt.image.renderable.ParameterBlock param,
                                  java.lang.StringBuffer message)

Returns if this operation supports the specified mode, and is capable of handling the given input source(s) for the specified mode.

Parameters:

modeName - The mode name (usually "Rendered").

param - The parameter block for the operation to performs.

message - A buffer for formatting an error message if any.

validateParameters

protected boolean validateParameters(java.lang.String modeName,
                                     java.awt.image.renderable.ParameterBlock param,
                                     java.lang.StringBuffer message)

Returns if the parameters are valids. This implementation check that the number of bands in the source src1 is equals to the number of bands of source src2.

Parameters:

modeName - The mode name (usually "Rendered").

param - The parameter block for the operation to performs.

message - A buffer for formatting an error message if any.