How to control fraction digits on inputfields-Jdev 11.1.1.6

Hi,   I have a scenario like restrict the user to enter fraction digits 20 or lessthan 20 and integer digits are 5 or lessthan 5 for input text field.Even if user enter more than 20,it should not allow the user to enter digits after that 20digits. The data type is oracle.jbo.domain.Number with precision is (25,20). In jsff i have given like below:                             JDev Version:11.1.1.6.0 Example: precision(25,20) Valid: 1.23 111.23456 12345.12345678901234567890 12.12345678901234567890 Invalid: 12.1234567890123456789012 111111.62 Please provide any alternate solution. Thanks

Take a look a this article by Yannick Ongena http://yonaweb.be/inter_portlet_communication_jsr_286_and_webcenter_11g_ps3

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