weka.gui.beans

Class FlowByExpression.ExpressionClause

java.lang.Object

weka.gui.beans.FlowByExpression.ExpressionNode

weka.gui.beans.FlowByExpression.ExpressionClause

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

FlowByExpression

protected static class FlowByExpression.ExpressionClause
extends FlowByExpression.ExpressionNode
implements java.io.Serializable

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FlowByExpression.ExpressionClause.ExpressionType

Field Summary

Fields

Modifier and Type	Field and Description
protected int	m_lhsAttIndex The index of the lhs attribute
protected java.lang.String	m_lhsAttributeName The name of the lhs attribute
protected double	m_numericOperand The rhs operand (if constant and is a number )
protected FlowByExpression.ExpressionClause.ExpressionType	m_operator The operator for this expression
protected java.util.regex.Pattern	m_regexPattern the compiled regex pattern (if the operator is REGEX)
protected java.lang.String	m_resolvedLhsName The name of the lhs attribute after resolving variables
protected java.lang.String	m_resolvedRhsOperand The rhs operand after resolving variables
protected int	m_rhsAttIndex index of the rhs if it is an attribute
protected boolean	m_rhsIsAttribute True if the rhs operand is an attribute
protected java.lang.String	m_rhsOperand The rhs operand (constant value or attribute name)

Fields inherited from class weka.gui.beans.FlowByExpression.ExpressionNode

m_env, m_isAnOr, m_isNegated, m_showAndOr

Constructor Summary

Constructors

Constructor and Description
ExpressionClause()
ExpressionClause(FlowByExpression.ExpressionClause.ExpressionType operator, java.lang.String lhsAttributeName, java.lang.String rhsOperand, boolean rhsIsAttribute, boolean isAnOr) Construct a new ExpressionClause

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(Instance inst, boolean result) Evaluate this node and combine with the result so far
void	init(Instances structure, Environment env) Initialize the node
protected java.lang.String	parseFromInternal(java.lang.String expression) Parse and initialize from the internal representation
javax.swing.tree.DefaultMutableTreeNode	toJTree(javax.swing.tree.DefaultMutableTreeNode parent) Get a DefaultMutableTreeNode for this node
java.lang.String	toString()
void	toStringDisplay(java.lang.StringBuffer buff) Get the display representation of this node
protected void	toStringInternal(java.lang.StringBuffer buff) Get the internal representation of this node

Methods inherited from class weka.gui.beans.FlowByExpression.ExpressionNode

isNegated, isOr, setIsOr, setNegated, setShowAndOr

Methods inherited from class java.lang.Object

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

Field Detail

m_operator

protected FlowByExpression.ExpressionClause.ExpressionType m_operator

The operator for this expression

m_lhsAttributeName

protected java.lang.String m_lhsAttributeName

The name of the lhs attribute

m_lhsAttIndex

protected int m_lhsAttIndex

The index of the lhs attribute

m_rhsOperand

protected java.lang.String m_rhsOperand

The rhs operand (constant value or attribute name)

m_rhsIsAttribute

protected boolean m_rhsIsAttribute

True if the rhs operand is an attribute

m_rhsAttIndex

protected int m_rhsAttIndex

index of the rhs if it is an attribute

m_resolvedLhsName

protected java.lang.String m_resolvedLhsName

The name of the lhs attribute after resolving variables

m_resolvedRhsOperand

protected java.lang.String m_resolvedRhsOperand

The rhs operand after resolving variables

m_regexPattern

protected java.util.regex.Pattern m_regexPattern

the compiled regex pattern (if the operator is REGEX)

m_numericOperand

protected double m_numericOperand

The rhs operand (if constant and is a number )

Constructor Detail

ExpressionClause

public ExpressionClause()

ExpressionClause

public ExpressionClause(FlowByExpression.ExpressionClause.ExpressionType operator,
                        java.lang.String lhsAttributeName,
                        java.lang.String rhsOperand,
                        boolean rhsIsAttribute,
                        boolean isAnOr)

Construct a new ExpressionClause

Parameters:

operator - the operator to use

lhsAttributeName - the lhs attribute name

rhsOperand - the rhs operand

rhsIsAttribute - true if the rhs operand is an attribute

isAnOr - true if the result of this expression is to be OR'ed with the result so far

Method Detail

init

public void init(Instances structure,
                 Environment env)

Description copied from class: FlowByExpression.ExpressionNode

Initialize the node

Overrides:

init in class FlowByExpression.ExpressionNode

Parameters:

structure - the structure of the incoming instances

env - Environment variables

evaluate

public boolean evaluate(Instance inst,
                        boolean result)

Description copied from class: FlowByExpression.ExpressionNode

Evaluate this node and combine with the result so far

Specified by:

evaluate in class FlowByExpression.ExpressionNode

Parameters:

inst - the incoming instance to evalute with

result - the result to combine with

Returns:

the result after combining with this node

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toStringDisplay

public void toStringDisplay(java.lang.StringBuffer buff)

Description copied from class: FlowByExpression.ExpressionNode

Get the display representation of this node

Specified by:

toStringDisplay in class FlowByExpression.ExpressionNode

Parameters:

buff - the string buffer to append to

toStringInternal

protected void toStringInternal(java.lang.StringBuffer buff)

Description copied from class: FlowByExpression.ExpressionNode

Get the internal representation of this node

Specified by:

toStringInternal in class FlowByExpression.ExpressionNode

Parameters:

buff - the string buffer to append to

toJTree

public javax.swing.tree.DefaultMutableTreeNode toJTree(javax.swing.tree.DefaultMutableTreeNode parent)

Description copied from class: FlowByExpression.ExpressionNode

Get a DefaultMutableTreeNode for this node

Specified by:

toJTree in class FlowByExpression.ExpressionNode

Parameters:

parent - the parent of this node (if any)

Returns:

the DefaultMutableTreeNode for this node

parseFromInternal

protected java.lang.String parseFromInternal(java.lang.String expression)

Description copied from class: FlowByExpression.ExpressionNode

Parse and initialize from the internal representation

Specified by:

parseFromInternal in class FlowByExpression.ExpressionNode

Parameters:

expression - the expression to parse in internal representation

Returns:

the remaining parts of the expression after parsing and removing the part for this node