Accumulator

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de.dante.extex.interpreter.expression.term
Class Accumulator

java.lang.Object
  de.dante.extex.interpreter.expression.term.Accumulator

All Implemented Interfaces:: EType

public class Accumulator
extends java.lang.Object
implements EType

This data type contains an accumulator which can contain values of different kinds.

Version:: $Revision: 1.1 $
Author:: Gerd Neugebauer

Constructor Summary
`Accumulator()` Creates a new object.

Method Summary
`EType`	`add(EType t)` Apply the operation + on the current instance and an additional argument.
`EType`	`and(EType t)` Apply the operation && on the current instance and an additional argument.
`EType`	`divide(EType t)` Apply the operation + on the current instance and an additional argument.
`TBoolean`	`eq(EType t)` Compare the current instance with an another value for equality.
`TBoolean`	`ge(EType t)` Compare the current instance with an another value for greater or equal.
`EType`	`getValue()` Getter for value.
`TBoolean`	`gt(EType t)` Compare the current instance with an another value for greater than.
`TBoolean`	`le(EType t)` Compare the current instance with an another value for less or equal.
`TBoolean`	`lt(EType t)` Compare the current instance with an another value for less.
`EType`	`multiply(EType t)` Apply the operation * on the current instance and an additional argument.
`TBoolean`	`ne(EType t)` Compare the current instance with an another value for not equal.
`EType`	`negate()` Apply the unary minus - on the current instance.
`EType`	`not()` Apply the unary negation ! on the current instance.
`EType`	`or(EType t)` Apply the operation \|\| on the current instance and an additional argument.
`EType`	`set(EType t)` Assign a new value from an additional argument.
`EType`	`subtract(EType t)` Apply the operation - on the current instance and an additional argument.
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object

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

Constructor Detail

Accumulator

public Accumulator()

Creates a new object.

Method Detail

add

public EType add(EType t)
          throws CastException,
                 UnsupportedException

Description copied from interface: EType

Apply the operation + on the current instance and an additional argument.

Specified by:: add in interface EType

Parameters:: t - the terminal to add
Returns:: the result of the operation
Throws:: CastException - in case of an error in casing the argument; UnsupportedException - in case of an unsupported operation
See Also:: EType.add( de.dante.extex.interpreter.expression.EType)

and

public EType and(EType t)
          throws CastException,
                 UnsupportedException

Description copied from interface: EType

Apply the operation && on the current instance and an additional argument.

Specified by:: and in interface EType

Parameters:: t - the terminal to build the conjunction with
Returns:: the result of the operation
Throws:: UnsupportedException - in case of an unsupported operation; CastException - in case of an error in casing the argument
See Also:: EType.and( de.dante.extex.interpreter.expression.EType)

divide

public EType divide(EType t)
             throws CastException,
                    UnsupportedException,
                    ArithmeticOverflowException

Description copied from interface: EType

Apply the operation + on the current instance and an additional argument.

Specified by:: divide in interface EType

Parameters:: t - the terminal to divide by
Returns:: the result of the operation
Throws:: CastException - in case of an error in casing the argument; UnsupportedException - in case of an unsupported operation; ArithmeticOverflowException - in case of a division by zero
See Also:: EType.divide( de.dante.extex.interpreter.expression.EType)

eq

public TBoolean eq(EType t)
            throws CastException,
                   UnsupportedException

Description copied from interface: EType

Compare the current instance with an another value for equality.

Specified by:: eq in interface EType

Parameters:: t - the terminal to compare to
Returns:: the result of the comparison
Throws:: CastException - in case of an error in casing the argument; UnsupportedException - in case of an unsupported operation
See Also:: EType.eq( de.dante.extex.interpreter.expression.EType)

ge

public TBoolean ge(EType t)
            throws CastException,
                   UnsupportedException

Description copied from interface: EType

Compare the current instance with an another value for greater or equal.

Specified by:: ge in interface EType

Parameters:: t - the terminal to compare to
Returns:: the result of the comparison
Throws:: CastException - in case of an error in casing the argument; UnsupportedException - in case of an unsupported operation
See Also:: EType.ge( de.dante.extex.interpreter.expression.EType)

getValue

public EType getValue()

Getter for value.

Returns:: the value

gt

public TBoolean gt(EType t)
            throws CastException,
                   UnsupportedException

Description copied from interface: EType

Compare the current instance with an another value for greater than.

Specified by:: gt in interface EType

Parameters:: t - the terminal to compare to
Returns:: the result of the comparison
Throws:: CastException - in case of an error in casing the argument; UnsupportedException - in case of an unsupported operation
See Also:: EType.gt( de.dante.extex.interpreter.expression.EType)

le

public TBoolean le(EType t)
            throws CastException,
                   UnsupportedException

Description copied from interface: EType

Compare the current instance with an another value for less or equal.

Specified by:: le in interface EType

Parameters:: t - the terminal to compare to
Returns:: the result of the comparison
Throws:: CastException - in case of an error in casing the argument; UnsupportedException - in case of an unsupported operation
See Also:: EType.le( de.dante.extex.interpreter.expression.EType)

lt

public TBoolean lt(EType t)
            throws CastException,
                   UnsupportedException

Description copied from interface: EType

Compare the current instance with an another value for less.

Specified by:: lt in interface EType

Parameters:: t - the terminal to compare to
Returns:: the result of the comparison
Throws:: UnsupportedException - in case of an unsupported operation; CastException - in case of an error in casing the argument
See Also:: EType.lt( de.dante.extex.interpreter.expression.EType)

multiply

public EType multiply(EType t)
               throws CastException,
                      UnsupportedException

Description copied from interface: EType

Apply the operation * on the current instance and an additional argument.

Specified by:: multiply in interface EType

Parameters:: t - the terminal to multiply
Returns:: the result of the operation
Throws:: CastException - in case of an error in casing the argument; UnsupportedException - in case of an unsupported operation
See Also:: EType.multiply( de.dante.extex.interpreter.expression.EType)

ne

public TBoolean ne(EType t)
            throws CastException,
                   UnsupportedException

Description copied from interface: EType

Compare the current instance with an another value for not equal.

Specified by:: ne in interface EType

Parameters:: t - the terminal to compare to
Returns:: the result of the comparison
Throws:: UnsupportedException - in case of an unsupported operation; CastException - in case of an error in casing the argument
See Also:: EType.ne( de.dante.extex.interpreter.expression.EType)

negate

public EType negate()
             throws UnsupportedException

Description copied from interface: EType

Apply the unary minus - on the current instance.

Specified by:: negate in interface EType

Returns:: the result of the operation
Throws:: UnsupportedException - in case of an unsupported operation
See Also:: EType.negate()

not

public EType not()

Description copied from interface: EType

Apply the unary negation ! on the current instance.

Specified by:: not in interface EType

Returns:: the result of the operation
See Also:: EType.not()

or

public EType or(EType t)
         throws CastException,
                UnsupportedException

Description copied from interface: EType

Apply the operation || on the current instance and an additional argument.

Specified by:: or in interface EType

Parameters:: t - the terminal to build the disjunction with
Returns:: the result of the operation
Throws:: UnsupportedException - in case of an unsupported operation; CastException - in case of an error in casing the argument
See Also:: EType.or( de.dante.extex.interpreter.expression.EType)

set

public EType set(EType t)

Description copied from interface: EType

Assign a new value from an additional argument. The argument is casted into the proper type.

Specified by:: set in interface EType

Parameters:: t - the terminal to build the conjunction with
Returns:: the result of the operation
See Also:: EType.set( de.dante.extex.interpreter.expression.EType)

subtract

public EType subtract(EType t)
               throws CastException,
                      UnsupportedException

Description copied from interface: EType

Apply the operation - on the current instance and an additional argument.

Specified by:: subtract in interface EType

Parameters:: t - the terminal to subtract
Returns:: the result of the operation
Throws:: UnsupportedException - in case of an unsupported operation; CastException - in case of an error in casing the argument
See Also:: EType.subtract( de.dante.extex.interpreter.expression.EType)

toString

public java.lang.String toString()

See Also:: Object.toString()

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