org.geotools.data.mif
Class MIFValueSetter

java.lang.Object
  org.geotools.data.mif.MIFValueSetter

public abstract class MIFValueSetter

extends java.lang.Object

Utility class for setting object values from strings and vice-versa.

The main use of this class is building a schema-dependent array of "parsers" which speed up the process of reading text lines and converting them into features.

Version:

$Id: MIFValueSetter.java 17700 2006-01-22 23:30:39Z desruisseaux $

Author:

Luca S. Percich, AMA-MI

Field Summary

protected java.lang.Object	objValue
protected java.lang.String	strValue

Constructor Summary

MIFValueSetter(java.lang.String defa)
The constructor accepts a default value for the ValueSetter.

Method Summary

java.lang.String	getError() Gets and resets the current error message.
java.lang.String	getString() Returns the string value.
java.lang.Object	getValue() Gets the object value.
boolean	setString(java.lang.String value) Sets the value as a String.
void	setValue(java.lang.Object value) Sets the object value, and calculates the String value.
protected abstract void	stringToValue() This method must be overridden by descendants in order to implement the correct conversion between strings and object values.
protected void	valueToString() Converts an object value to string - the default implementation uses toString for non-null values.

Methods inherited from class java.lang.Object

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

Field Detail

strValue

protected java.lang.String strValue

objValue

protected java.lang.Object objValue

Constructor Detail

MIFValueSetter

public MIFValueSetter(java.lang.String defa)

The constructor accepts a default value for the ValueSetter.

Parameters:

defa - String representation of the default value

Method Detail

setString

public final boolean setString(java.lang.String value)

Sets the value as a String. After a setString call, getValue() can be used to access the converted value.

Parameters:

value - String representation of the object value

Returns:

true if conversion was successful

getString

public final java.lang.String getString()

Returns the string value.

Returns:

setValue

public final void setValue(java.lang.Object value)

Sets the object value, and calculates the String value.

Parameters:

value - The Object value

getValue

public final java.lang.Object getValue()

Gets the object value.

Returns:

getError

public final java.lang.String getError()

Gets and resets the current error message.

Returns:

The current error message, "" if none

valueToString

protected void valueToString()

Converts an object value to string - the default implementation uses toString for non-null values.

stringToValue

protected abstract void stringToValue()
                               throws java.lang.Exception

This method must be overridden by descendants in order to implement the correct conversion between strings and object values.
Must throw an exception if conversion failed

.

Throws:

java.lang.Exception - if value conversion failed