com.langner.jmatic2
Class PLCValue

java.lang.Object
  com.langner.jmatic2.PLCValue

All Implemented Interfaces:

IPLCValue

public class PLCValue

extends java.lang.Object

implements IPLCValue

This class represents the value access of a PLCAlias object.

Version:

2.0

Author:

Langner Communications AG

Copyright:

Langner (c) 2001-2005

Method Summary

java.lang.Object	clone() Clones the PLCValue object.
byte[]	getBinary() Retrieve the data as raw binary values.
java.lang.Boolean	getBoolean() Retrieve the data as a boolean value.
java.util.Date	getDate() Retrieve the data as a Date value.
java.lang.Float	getFloat() Retrieve the data as a real value.
java.lang.Long	getLong() Retrieve the data as a long value.
java.lang.String	getString() Retrieve the data as a string.
java.lang.Long	getTime() Retrieve the data as a long value used as milliseconds.

Methods inherited from class java.lang.Object

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

Method Detail

getBinary

public byte[] getBinary()

Retrieve the data as raw binary values. The PLCAlias object must be of type BINARY.

Specified by:

getBinary in interface IPLCValue

Returns:

The value or null if the type of the alias does not match.

getBoolean

public java.lang.Boolean getBoolean()

Retrieve the data as a boolean value. The PLCAlias object must be of type BOOLEAN.

Specified by:

getBoolean in interface IPLCValue

Returns:

The value or null if the type of the alias does not match.

getDate

public java.util.Date getDate()

Retrieve the data as a Date value. The PLCAlias object must be of type DATE, TOD or DT.

Specified by:

getDate in interface IPLCValue

Returns:

The value or null if the type of the alias does not match.

getFloat

public java.lang.Float getFloat()

Retrieve the data as a real value. The PLCAlias object must be of type REAL.

Specified by:

getFloat in interface IPLCValue

Returns:

The value or null if the type of the alias does not match.

getLong

public java.lang.Long getLong()

Retrieve the data as a long value. The PLCAlias object must be of type BYTE, INT, DINT, WORD or DWORD.

Specified by:

getLong in interface IPLCValue

Returns:

The value or null if the type of the alias does not match.

getString

public java.lang.String getString()

Retrieve the data as a string. The PLCAlias object can be of any data type.

Specified by:

getString in interface IPLCValue

Returns:

The String value of the alias or the string representation of the value.

getTime

public java.lang.Long getTime()

Retrieve the data as a long value used as milliseconds. The PLCAlias object must be of type S5TIME or TIME.

Specified by:

getTime in interface IPLCValue

Returns:

The value or null if the type of the alias does not match.

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Clones the PLCValue object.

Returns:

New PLCValue object.

Throws:

java.lang.CloneNotSupportedException - is thrown, if the data type was not clonable