Package com.singularsys.extensions.field.implementations

Class SimpleVectorField

java.lang.Object

com.singularsys.extensions.field.implementations.SimpleVectorField

All Implemented Interfaces:

FieldI, Serializable

public class SimpleVectorField
extends Object
implements FieldI

A simple field for lists of type Vector<Object>. It implements addition, subtraction, negation, multiplication by scalars and division by a scalar. It implements equality and inequality, but not order comparisons.

Use

fields = new FieldCollection();
baseField = new IntegerField();
vectorField = new SimpleVectorField(fields);
fields.addField(baseField);
fields.addField(vectorField);

To allow addition and other operations on vectors and matrices of integers.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SimpleVectorField(FieldI baseField)	Constructor with the field for the base type of the vector.

Method Summary

Modifier and Type	Method	Description
Object	add(Object l, Object r)	Add two members of the field.
Vector<Object>	addG(Vector<?> l, Vector<?> r)
Boolean	and(Object l, Object r)	Logical and.
Object	div(Object l, Object r)	Divides two members of the field.
Boolean	eq(Object l, Object r)	Equals
Boolean	ge(Object l, Object r)	Greater or equal to
Vector<Object>	getOne()	Get the multiplicative identity for this field.
Vector<Object>	getZero()	Get the additive identity for this field
Boolean	gt(Object l, Object r)	Greater than
Boolean	le(Object l, Object r)	Less than or equals to
Boolean	lt(Object l, Object r)	Less than
Object	mod(Object l, Object r)	The modulus of two members of the field.
Vector<Object>	modG(Vector<?> l, Object r)
Object	mul(Object l, Object r)	Multiplies two members of the field.
Boolean	ne(Object l, Object r)	Not Equals
Object	neg(Object l)	The negation -x of an element.
Vector<Object>	negG(Vector<?> l)
Boolean	not(Object l)	Logical not.
Boolean	or(Object l, Object r)	Logical or.
Object	pow(Object l, Object r)	The power operator.
Object	sub(Object l, Object r)	Subtract two members of the field.
Vector<Object>	subG(Vector<?> l, Vector<?> r)

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleVectorField

public SimpleVectorField(FieldI baseField)

Constructor with the field for the base type of the vector.

Parameters:

baseField - used for operators of the elements of the vectors.

Method Details

getOne

public Vector<Object> getOne()

Description copied from interface: FieldI

Get the multiplicative identity for this field.

Specified by:

getOne in interface FieldI

Returns:

object representing one or null if undefined for this field

getZero

public Vector<Object> getZero()

Description copied from interface: FieldI

Get the additive identity for this field

Specified by:

getZero in interface FieldI

Returns:

object representing zero or null if undefined for this field

addG

public Vector<Object> addG(Vector<?> l,
 Vector<?> r)
                    throws EvaluationException

Throws:

EvaluationException

subG

public Vector<Object> subG(Vector<?> l,
 Vector<?> r)
                    throws EvaluationException

Throws:

EvaluationException

negG

public Vector<Object> negG(Vector<?> l)
                    throws EvaluationException

Throws:

EvaluationException

mul

public Object mul(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Multiplies two members of the field.

Specified by:

mul in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

div

public Object div(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Divides two members of the field.

Specified by:

div in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

modG

public Vector<Object> modG(Vector<?> l,
 Object r)
                    throws EvaluationException

Throws:

EvaluationException

add

public Object add(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Add two members of the field.

Specified by:

add in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

sub

public Object sub(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Subtract two members of the field.

Specified by:

sub in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

neg

public Object neg(Object l)
           throws EvaluationException

Description copied from interface: FieldI

The negation -x of an element.

Specified by:

neg in interface FieldI

Parameters:

l - the argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

mod

public Object mod(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

The modulus of two members of the field.

Specified by:

mod in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

pow

public Object pow(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

The power operator.

Specified by:

pow in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

eq

public Boolean eq(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Equals

Specified by:

eq in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

ne

public Boolean ne(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Not Equals

Specified by:

ne in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

gt

public Boolean gt(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Greater than

Specified by:

gt in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

ge

public Boolean ge(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Greater or equal to

Specified by:

ge in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

lt

public Boolean lt(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Less than

Specified by:

lt in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

le

public Boolean le(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Less than or equals to

Specified by:

le in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

and

public Boolean and(Object l,
 Object r)
            throws EvaluationException

Description copied from interface: FieldI

Logical and.

Specified by:

and in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

or

public Boolean or(Object l,
 Object r)
           throws EvaluationException

Description copied from interface: FieldI

Logical or.

Specified by:

or in interface FieldI

Parameters:

l - left-hand argument

r - right-hand argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error

not

public Boolean not(Object l)
            throws EvaluationException

Description copied from interface: FieldI

Logical not.

Specified by:

not in interface FieldI

Parameters:

l - argument

Returns:

an object representing the result or null if it can not be evaluated.

Throws:

EvaluationException - on error