UFSFormInterface

java.lang.Object
- com.ebasetech.ufs.kernel.UFSFormInterface

All Implemented Interfaces:

java.io.Serializable
```
public class UFSFormInterface
extends java.lang.Object
implements java.io.Serializable
```
This class represents the external interface to a running Ebase form. It allows information to be extracted from the form for use by other programs or Java Server Pages (JSPs) running within the same web application. It also allows form field values to be changed.
Example of instantiating UFSFormInterface from a JSP is :
<%@ page language="java" import="com.ebasetech.ufs.kernel.*"%>
<% UFSFormInterface form = UFSFormInterface.getFormInterface(); %>
Information can then be extracted from the form and presented on the page. For example, to display the current page name :
Page name: <%=form.getCurrentPage()%>

Version:

2.4

Author:

Jon Rickard 30 Jan 2002

See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description

UFSFormInterface(com.ebasetech.ufs.runtime.HeadlessUserState headlessUserState)
UFSFormInterface constructor - internal use only

Constructors
Constructor and Description
`UFSFormInterface(com.ebasetech.ufs.runtime.HeadlessUserState headlessUserState)` UFSFormInterface constructor - internal use only

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addScratchPadObject(java.lang.String name, java.lang.Object obj)` Add an object to the scratchpad area
`java.lang.String`	`calculateFontSize(java.lang.String sizeString)` Deprecated. from V4.0 with no replacement. Zoom options are not applicable in V4.0. Returns the value of sizeString
`void`	`commitTransaction()` Commits the current transaction and starts a new transaction.
`void`	`deleteAllRows(java.lang.String tableFieldName)` Delete all rows from a table
`com.ebasetech.xi.api.Client`	`getClientApi()` Returns the Api `Client` object that provides information about the browser client.
`java.lang.String`	`getCurrentPage()`
`java.lang.String`	`getFieldValue(java.lang.String fieldName)` Returns the string value of the field requested, or null if the field does not exist in the form.
`com.ebasetech.ufs.beans.FormBean`	`getForm()`
`com.ebasetech.xi.api.WebForm`	`getFormApi()` Returns the Api `WebForm` object that provides access to the form Api.
`static UFSFormInterface`	`getFormInterface()` Returns the current UFSFormInterface object to external callers.
`java.lang.String`	`getFormName()` returns the name of the form
`com.ebasetech.ufs.kernel.FormSession`	`getFormSessionContext()` Returns the FormSession context object for the user session.
`com.ebasetech.ufs.runtime.HeadlessUserState`	`getHeadlessUserState()`
`com.ebasetech.ufs.kernel.FormInterfaceLogger`	`getLogger()`
`java.lang.String`	`getMessageText(java.lang.String project, int messageId, java.util.Vector parms)` Deprecated. from V5.0 use `getMessageText(String, List)` instead
`java.lang.String`	`getMessageText(java.lang.String messageId, java.util.List<java.lang.Object> parms)` Returns a message text.
`java.lang.Object[]`	`getPages(boolean allPages)` Returns a list of the form's pages - in order as much as possible
`java.lang.String`	`getRelativeFieldName(java.lang.String fieldName)`
`java.lang.String`	`getRelativePageName(java.lang.String pageName)`
`java.lang.String`	`getRelativeTextId(java.lang.String textId)`
`java.lang.Object`	`getScratchPadObject(java.lang.String name)` Get an object from the scratchpad area
`com.ebasetech.ufs.scripts.ScriptContext`	`getScriptContext()`
`com.ebasetech.xi.api.Services`	`getServicesApi()` Returns the Api `Services` object that provides access to various services such as `FileServices`.
`javax.servlet.http.HttpSession`	`getSessionContext()` Returns the HttpSession context object for the user session.
`com.ebasetech.xi.api.EbaseSystem`	`getSystem()` Returns the Api `System` object that provides access to common services and information.
`TableDataInterface`	`getTableData(java.lang.String tableFieldName)`
`java.lang.String`	`getText(int textId)` Deprecated. getText(textId, namespace) should be used.
`java.lang.String`	`getText(java.lang.String textId, java.lang.String namespace)` returns the text for the corresponding textid in the form's language
`int`	`getZoomAmount()` Deprecated. from V4.0 with no replacement. The zoom facility is no longer supported.
`void`	`insertRow(java.lang.String tableFieldName, boolean empty)` Insert a new row to a table.
`boolean`	`isBatchMode()` Returns true if the system is operating in batch mode.
`boolean`	`isDisplayInColour()` Deprecated. from V4.0 with no replacement. The ability to suppress colour is no longer supported.
`boolean`	`isJavascriptEnabled()` can Javascript be used with this browser connection
`boolean`	`isUseStylesheets()` Deprecated. from V4.0 with no replacement. Output is always rendered using CSS regardless of whether this is supported by the browser.
`void`	`logFormError(java.lang.String errorMsg)` Log an error message.
`void`	`logFormInfo(java.lang.String infoMsg)` Log an information message.
`void`	`removeScratchPadObject(java.lang.String name)` Remove an object from the scratchpad area
`void`	`rollbackTransaction()` Rolls back the current transaction and starts a new transaction.
`void`	`setErrorMessage(int messageNo, java.util.Vector messageParameters)` Deprecated. use `setErrorMessageText(String, List)` instead
`void`	`setErrorMessage(java.lang.String messageText)` Add a simple error message to the current control where the error message text is supplied as messageText.
`void`	`setErrorMessageText(java.lang.String textId, java.util.List<java.lang.String> messageParameters)` Add an error message to the current control.
`void`	`setFieldList(java.lang.String fieldName, java.util.Vector values)` Use this method to dynamically add a list to a form field.
`void`	`setFieldValue(java.lang.String fieldName, java.lang.Object value)` Sets a new value for the specified type.
`void`	`setHeadlessUserState(com.ebasetech.ufs.runtime.HeadlessUserState hadlessUserState)`
`void`	`setScriptContext(com.ebasetech.ufs.runtime.EventScriptContext scriptContext)`
`void`	`setTableData(java.lang.String tableFieldName, TableDataInterface tableData)`
`void`	`setWarningMessage(int messageNo, java.util.Vector messageParameters)` Add an warning message to the current control.
`void`	`setWarningMessageText(java.lang.String textId, java.util.List<java.lang.String> messageParameters)` Add an warning message to the current control.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - UFSFormInterface
```
public UFSFormInterface(com.ebasetech.ufs.runtime.HeadlessUserState headlessUserState)
```
    UFSFormInterface constructor - internal use only
- Method Detail
  - getHeadlessUserState
```
public com.ebasetech.ufs.runtime.HeadlessUserState getHeadlessUserState()
```
  - getCurrentPage
```
public java.lang.String getCurrentPage()
```
  - getFieldValue
```
public java.lang.String getFieldValue(java.lang.String fieldName)
```
    Returns the string value of the field requested, or null if the field does not exist in the form.
  - getFormName
```
public java.lang.String getFormName()
```
    returns the name of the form
  - getPages
```
public java.lang.Object[] getPages(boolean allPages)
```
    Returns a list of the form's pages - in order as much as possible
  - getText
```
public java.lang.String getText(int textId)
```
    Deprecated. getText(textId, namespace) should be used.
    
    returns the text for the corresponding textid in the form's language
    
    Parameters:
    textId - is the unique text id number
  - getText
```
public java.lang.String getText(java.lang.String textId,
                       java.lang.String namespace)
```
    returns the text for the corresponding textid in the form's language
    
    Parameters:
    textId - is the unique text id string
    namespace - is the text namespace and should be one of 'Local', 'Shared' or 'System'
  - setErrorMessage
```
public void setErrorMessage(int messageNo,
                   java.util.Vector messageParameters)
                     throws com.ebasetech.ufs.kernel.FormException
```
    Deprecated. use setErrorMessageText(String, List) instead
    
    Add an error message to the current control. This method supports multi-lingual messages, and substitution of values into the message text. messageNo - is a pre-defined message number within the same project as the form messageParameters - is a vector of Strings containing the same number of values as the number of replaceable variables within the message. e.g. Message : "Value && invalid for customer &&" requires a vector of two values. Calling this method stops form processing and returns the form page to the user displaying the error. No further FPL script commands will be executed.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - setErrorMessageText
```
public void setErrorMessageText(java.lang.String textId,
                       java.util.List<java.lang.String> messageParameters)
                         throws com.ebasetech.ufs.kernel.FormException
```
    Add an error message to the current control. This method supports multi-lingual messages, and substitution of values into the message text. Calling this method stops form processing and returns the form page to the user displaying the error. No further script commands will be executed.
    
    Parameters:
    textId - the text id of the text to be added as a message, texts can be defined in form/component texts or in linked texts files
    messageParameters - a list of Strings containing the same number of values as the number of replaceable variables within the message. e.g. Message : "Value && invalid for customer &&" requires a list of two values.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - setErrorMessage
```
public void setErrorMessage(java.lang.String messageText)
                     throws com.ebasetech.ufs.kernel.FormException
```
    Add a simple error message to the current control where the error message text is supplied as messageText. This method does not support warning messages, multi-lingual messages, or substitution of field values into messages. To use any of these options, use the alternative setErrorMessage and setWarningMessage methods. Calling this method stops form processing and returns the form page to the user displaying the error. No further FPL script commands will be executed.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - setFieldList
```
public void setFieldList(java.lang.String fieldName,
                java.util.Vector values)
                  throws com.ebasetech.ufs.kernel.FormException
```
    Use this method to dynamically add a list to a form field. The values vector contains a list of com.ebasetech.ufs.kernel.SelectValue objects each one of which contains a display value, a return value, and optionally a display sequence. See SelectValue javadoc. If a list already exists for the field, it will be replaced.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - setFieldValue
```
public void setFieldValue(java.lang.String fieldName,
                 java.lang.Object value)
                   throws com.ebasetech.ufs.kernel.FormException
```
    Sets a new value for the specified type. Will throw FormException if the field type is not compatible with the object type.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - setWarningMessage
```
public void setWarningMessage(int messageNo,
                     java.util.Vector messageParameters)
                       throws com.ebasetech.ufs.kernel.FormException
```
    Add an warning message to the current control. This method supports multi-lingual messages, and substitution of values into the message text. messageNo - is a pre-defined message number within the same project as the form messageParameters - is a vector of Strings containing the same number of values as the number of replaceable variables within the message. e.g. Message : "Value && invalid for customer &&" requires a vector of two values.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - setWarningMessageText
```
public void setWarningMessageText(java.lang.String textId,
                         java.util.List<java.lang.String> messageParameters)
                           throws com.ebasetech.ufs.kernel.FormException
```
    Add an warning message to the current control. This method supports multi-lingual messages, and substitution of values into the message text.
    
    Parameters:
    textId - the text id of the text to be added as a message, texts can be defined in form/component texts or in linked texts files
    messageParameters - a list of Strings containing the same number of values as the number of replaceable variables within the message. e.g. Message : "Value && invalid for customer &&" requires a list of two values.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - addScratchPadObject
```
public void addScratchPadObject(java.lang.String name,
                       java.lang.Object obj)
```
    Add an object to the scratchpad area
  - getScratchPadObject
```
public java.lang.Object getScratchPadObject(java.lang.String name)
```
    Get an object from the scratchpad area
  - removeScratchPadObject
```
public void removeScratchPadObject(java.lang.String name)
```
    Remove an object from the scratchpad area
  - setScriptContext
```
public void setScriptContext(com.ebasetech.ufs.runtime.EventScriptContext scriptContext)
```
  - getRelativeFieldName
```
public java.lang.String getRelativeFieldName(java.lang.String fieldName)
```
  - getRelativePageName
```
public java.lang.String getRelativePageName(java.lang.String pageName)
```
  - getRelativeTextId
```
public java.lang.String getRelativeTextId(java.lang.String textId)
```
  - getTableData
```
public TableDataInterface getTableData(java.lang.String tableFieldName)
                                throws com.ebasetech.ufs.kernel.FormException
```
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - setTableData
```
public void setTableData(java.lang.String tableFieldName,
                TableDataInterface tableData)
                  throws com.ebasetech.ufs.kernel.FormException
```
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - insertRow
```
public void insertRow(java.lang.String tableFieldName,
             boolean empty)
               throws com.ebasetech.ufs.kernel.FormException
```
    Insert a new row to a table.
    
    Parameters:
    tableFieldName - field name for an existing table
    empty - true if the row should be marked as empty. see documentation for insertRow FPL command.
    
    Throws:
    
    FormException - will throw a FormException if tableFieldName is not a table
  - deleteAllRows
```
public void deleteAllRows(java.lang.String tableFieldName)
                   throws com.ebasetech.ufs.kernel.FormException
```
    Delete all rows from a table
    
    Parameters:
    tableFieldName - field name for an existing table
    
    Throws:
    
    FormException - will throw a FormException if tableFieldName is not a table
  - isJavascriptEnabled
```
public boolean isJavascriptEnabled()
```
    can Javascript be used with this browser connection
  - getZoomAmount
```
public int getZoomAmount()
```
    Deprecated. from V4.0 with no replacement. The zoom facility is no longer supported.
  - isDisplayInColour
```
public boolean isDisplayInColour()
```
    Deprecated. from V4.0 with no replacement. The ability to suppress colour is no longer supported.
  - isUseStylesheets
```
public boolean isUseStylesheets()
```
    Deprecated. from V4.0 with no replacement. Output is always rendered using CSS regardless of whether this is supported by the browser.
  - calculateFontSize
```
public java.lang.String calculateFontSize(java.lang.String sizeString)
```
    Deprecated. from V4.0 with no replacement. Zoom options are not applicable in V4.0. Returns the value of sizeString
    
    Adjusts the font size passed by incrementing it by the zoom amount and converting it to the appropriate units depending on whether or not the client browser supports style sheets. This allows the font size to react to dynamic changes such as the user clicking accessibility buttons The algorithms used in this calculation are the same as those used to adjust font sizes specified in the presentation template. sizeString can be a number ending in 'px', 'em' or '%'. e.g. '12px', '0.9em', '110%' Any other formats are returned unadjusted.
  - getSessionContext
```
public javax.servlet.http.HttpSession getSessionContext()
```
    Returns the HttpSession context object for the user session. This can be used to store and retrieve user-related parameters and data. Note that the HttpSession context and all attributes it contains are automatically released when the session expires.
  - getFormSessionContext
```
public com.ebasetech.ufs.kernel.FormSession getFormSessionContext()
```
    Returns the FormSession context object for the user session. There is one FormSession object for each end-user browser window. This can be used to store and retrieve parameters and data that relate to one specific execution of a form. This is in contrast to method getSessionContext() that returns the HttpSession object that applies to the entire session.
  - logFormError
```
public void logFormError(java.lang.String errorMsg)
```
    Log an error message. The message will appear on the server log and will also be visible to the designer using View --> execution log.
  - logFormInfo
```
public void logFormInfo(java.lang.String infoMsg)
```
    Log an information message. The message will appear on the server log and will also be visible to the designer using View --> execution log.
  - isBatchMode
```
public boolean isBatchMode()
```
    Returns true if the system is operating in batch mode. i.e. no browser client exists.
  - rollbackTransaction
```
public void rollbackTransaction()
                         throws com.ebasetech.ufs.kernel.FormTransactionException
```
    Rolls back the current transaction and starts a new transaction.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormTransactionException
  - commitTransaction
```
public void commitTransaction()
                       throws com.ebasetech.ufs.kernel.FormTransactionException
```
    Commits the current transaction and starts a new transaction.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormTransactionException
  - getMessageText
```
public java.lang.String getMessageText(java.lang.String project,
                              int messageId,
                              java.util.Vector parms)
                                throws com.ebasetech.ufs.kernel.FormException
```
    Deprecated. from V5.0 use getMessageText(String, List) instead
    
    Returns a message text. In a multi-lingual system, the same rules are applied to select the language as are used to display a text using the FPL message command. Parameters: project - the project name messageId - the message number parms - a Vector of String objects which will be substituted into && variables in the message text.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - getMessageText
```
public java.lang.String getMessageText(java.lang.String messageId,
                              java.util.List<java.lang.Object> parms)
                                throws com.ebasetech.ufs.kernel.FormException
```
    Returns a message text. In a multi-lingual system, the same rules are applied to select the language as are used to display a text using the FPL message command or one of the Javascript API addXxxMessage() methods.
    
    Parameters:
    messageId - text id of the text to be added as a message, texts can be defined in form/component texts or in linked texts files
    parms - a list of String objects which will be substituted into && variables in the message text.
    
    Throws:
    
    com.ebasetech.ufs.kernel.FormException
  - getForm
```
public com.ebasetech.ufs.beans.FormBean getForm()
```
  - getFormApi
```
public com.ebasetech.xi.api.WebForm getFormApi()
```
    Returns the Api WebForm object that provides access to the form Api.
    
    Returns:
    WebForm
    Since:
    
    V4.4
  - getClientApi
```
public com.ebasetech.xi.api.Client getClientApi()
```
    Returns the Api Client object that provides information about the browser client.
    
    Returns:
    Client
    Since:
    
    V4.4
  - getServicesApi
```
public com.ebasetech.xi.api.Services getServicesApi()
```
    Returns the Api Services object that provides access to various services such as FileServices.
    
    Returns:
    Services
    Since:
    
    V5.1
  - getSystem
```
public com.ebasetech.xi.api.EbaseSystem getSystem()
```
    Returns the Api System object that provides access to common services and information.
    
    Returns:
    System
    Since:
    
    V4.4
  - getLogger
```
public com.ebasetech.ufs.kernel.FormInterfaceLogger getLogger()
```
  - getFormInterface
```
public static UFSFormInterface getFormInterface()
```
    Returns the current UFSFormInterface object to external callers. This method is intended for use with JSP's to gain access to form information. Object is constructed on demand;
  - setHeadlessUserState
```
public void setHeadlessUserState(com.ebasetech.ufs.runtime.HeadlessUserState hadlessUserState)
```
  - getScriptContext
```
public com.ebasetech.ufs.scripts.ScriptContext getScriptContext()
```

Class UFSFormInterface

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

UFSFormInterface

Method Detail

getHeadlessUserState

getCurrentPage

getFieldValue

getFormName

getPages

getText

getText

setErrorMessage

setErrorMessageText

setErrorMessage

setFieldList

setFieldValue

setWarningMessage

setWarningMessageText

addScratchPadObject

getScratchPadObject

removeScratchPadObject

setScriptContext

getRelativeFieldName

getRelativePageName

getRelativeTextId

getTableData

setTableData

insertRow

deleteAllRows

isJavascriptEnabled

getZoomAmount

isDisplayInColour

isUseStylesheets

calculateFontSize

getSessionContext

getFormSessionContext

logFormError

logFormInfo

isBatchMode

rollbackTransaction

commitTransaction

getMessageText

getMessageText

getForm

getFormApi

getClientApi

getServicesApi

getSystem

getLogger

getFormInterface

setHeadlessUserState

getScriptContext