org.encog.ml.prg.extension

Interface ProgramExtensionTemplate

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

BasicTemplate, ConstantPool

public interface ProgramExtensionTemplate
extends java.io.Serializable

Defines an opcode. Opcodes are used to extend Encog programs.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.List<ParamTemplate>	NO_PARAMS No parameters.
static int	NO_PREC Defines a very low precidence.

Method Summary

Modifier and Type	Method and Description
ExpressionValue	evaluate(ProgramNode actual) Evaluate the specified actual program node, using this opcode template.
int	getChildNodeCount()
int	getDataSize()
java.lang.String	getName()
NodeType	getNodeType()
java.util.List<ParamTemplate>	getParams()
int	getPrecedence()
ParamTemplate	getReturnValue()
boolean	isPossibleReturnType(EncogProgramContext context, ValueType rtn) Determines if the specified return type is a possible return type.
boolean	isVariable()
void	randomize(java.util.Random rnd, java.util.List<ValueType> desiredType, ProgramNode actual, double minValue, double maxValue) Randomize this actual tree node.

Field Detail

NO_PREC

static final int NO_PREC

Defines a very low precidence.

See Also:

Constant Field Values

NO_PARAMS

static final java.util.List<ParamTemplate> NO_PARAMS

No parameters.

Method Detail

evaluate

ExpressionValue evaluate(ProgramNode actual)

Evaluate the specified actual program node, using this opcode template.

Parameters:

actual - The tree node in the actual program.

Returns:

The result of the evaluation.

getChildNodeCount

int getChildNodeCount()

Returns:

Get the number of child nodes that this opcode requires.

getDataSize

int getDataSize()

Returns:

The size of extra data that is stored by this node.

getName

java.lang.String getName()

Returns:

Get the name of this opcode.

getNodeType

NodeType getNodeType()

Returns:

The node type.

getParams

java.util.List<ParamTemplate> getParams()

Returns:

The parameters (child nodes) required by this node.

getPrecedence

int getPrecedence()

Returns:

The operator precedence.

getReturnValue

ParamTemplate getReturnValue()

Returns:

The return value for this opcode.

isPossibleReturnType

boolean isPossibleReturnType(EncogProgramContext context,
                             ValueType rtn)

Determines if the specified return type is a possible return type.

Parameters:

context - The program context.

rtn - The potential return type to check.

Returns:

True, if the specified type is a possible return type.

isVariable

boolean isVariable()

Returns:

Returns true if this node is variable.

randomize

void randomize(java.util.Random rnd,
               java.util.List<ValueType> desiredType,
               ProgramNode actual,
               double minValue,
               double maxValue)

Randomize this actual tree node.

Parameters:

rnd - Random number generator.

desiredType - The desired type of the randomization, if allowed.

actual - The actual program node to randomize.

minValue - The minimum value to use for randomization.

maxValue - The maximum value to use for randomization.