org.jwat.common

Class FieldValidator

java.lang.Object

org.jwat.common.FieldValidator

public class FieldValidator
extends java.lang.Object

Field validation utility class.

Author:

lbihanic, selghissassi, nicl

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<java.lang.String,java.lang.Integer>	fieldIdxMap Map of field name to field index mappings.
protected java.lang.String[]	fieldNames Array of field names.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FieldValidator() Protected constructor to ensure correct instantiation.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getArrayValue(java.lang.String[] array, int idx) Checks to if the index is out of bounds in the give array and also if the value if null or empty.
static FieldValidator	prepare(java.lang.String[] fieldNames) Prepares a validator for use on a given set of fields.

Methods inherited from class java.lang.Object

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

Field Detail

fieldNames

protected java.lang.String[] fieldNames

Array of field names.

fieldIdxMap

protected java.util.Map<java.lang.String,java.lang.Integer> fieldIdxMap

Map of field name to field index mappings.

Constructor Detail

FieldValidator

protected FieldValidator()

Protected constructor to ensure correct instantiation.

Method Detail

prepare

public static FieldValidator prepare(java.lang.String[] fieldNames)

Prepares a validator for use on a given set of fields.

Parameters:

fieldNames - array of field names.

Returns:

validator used to look field by field name -> index.

getArrayValue

public static java.lang.String getArrayValue(java.lang.String[] array,
                                             int idx)

Checks to if the index is out of bounds in the give array and also if the value if null or empty.

Parameters:

array - source value array

idx - desired index into array

Returns:

value index in array or null