| Method Summary |
|
| public String | getFallbackForward()
Returns the name of the field that is returned if none of the predefined keys matches the lookup-value. |
| public String | getField()
Returns the name of the field from where to read the key value. |
| public String | getForward(int index)
Retrieves the forward-fieldname for the key at the given position. |
| public String[] | getForward()
Returns all forward-definitions as string-array. |
| public int | getForwardCount()
Returns the number of forward-definitions that have been defined. |
| public Expression | getInstance()
Return a completly separated copy of this function. |
| public String | getKey(int index)
Returns a key value at the given index.
Parameters:
index - the index position of the key in the list. |
| public String[] | getKey()
Returns all defined keys as string array. |
| public int | getKeyCount()
Returns the number of keys defined in the expression. |
| public String | getNullValue()
Returns the value that is returned if the key-field evaluates to null. |
| public Object | getValue()
Performs the lookup by first querying the given field, and then mapping the retrived value into one of the
field names. |
| public boolean | isIgnoreCase()
Returns, whether the key-lookup should be case-insensitive. |
| public void | setFallbackForward(String fallbackForward)
Defines the name of the field that is returned if none of the predefined keys matches the lookup-value. |
| public void | setField(String field)
Defines the name of the field from where to read the key value. |
| public void | setForward(int index, String value)
Defines the forward-fieldname for the key at the given position. |
| public void | setForward(String[] forwards)
Defiens all forward-definitions using the values of the string-array. |
| public void | setIgnoreCase(boolean ignoreCase)
Defines, whether the key-lookup should be case-insensitive. |
| public void | setKey(int index, String key)
Defines a key value to which the lookup-field's value is compared. |
| public void | setKey(String[] keys)
Defines all keys using the values from the string array. |
| public void | setNullValue(String nullValue)
Defines the value that is returned if the key-field evaluates to null. |
