BindingItemFromRel (BCD-UI Api)

java.lang.Object
- de.businesscode.bcdui.binding.SimpleBindingItem
- - de.businesscode.bcdui.binding.BindingItem
  - - de.businesscode.bcdui.binding.BindingItemFromRel

```
public class BindingItemFromRel
extends BindingItem
```
Represents a BindingItem coming form a BindingSet Relation

Field Summary
- Fields inherited from class de.businesscode.bcdui.binding.SimpleBindingItem
  BCD_NO_TABLE_ALIAS, columnExpression, pureColumnNamePattern, qColumnExpr, wordPattern

Constructor Summary

Constructors
Constructor	Description
`BindingItemFromRel(BindingItem src, Relation relation, java.lang.String id, java.lang.String importCaption)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getQColumnExpression(java.lang.String tableAlias)`	Helper to merge a table alias into a column expression, which can contain SQL functions etc Method calcQColumnExpression
`BindingItem`	`getReferencedBindingItem()`
`Relation`	`getRelation()`
`java.lang.String`	`getTableAlias(java.lang.String mainTableAlias)`	Returns the table alias of either the main table or the relation, depending on where the source BindingItem belongs to

Methods inherited from class de.businesscode.bcdui.binding.BindingItem
getAggr, getAttributes, getCaption, getColumnExpression, getCustomAttributesMap, getDisplayFormat, getDisplayFormatAsNode, getJDBCColumnDisplaySize, getJDBCColumnScale, getJDBCDataType, getJDBCDataTypeName, getJDBCNullable, getJDBCSigned, getReferences, getReferencesAsNode, isDefinedJDBCDataType, isEscapeXML, isKey, isNumeric, isReadOnly, setAggr, setCaption, setDisplayFormat, setEscapeXML, setJDBCColumnDisplaySize, setJDBCColumnScale, setJDBCDataType, setJDBCDataTypeName, setJDBCNullable, setJDBCSigned, setKey, setReadOnly, setReferences, toString, toXML

Methods inherited from class de.businesscode.bcdui.binding.SimpleBindingItem
getBindingSet, getId, isColumnQuoting, setBindingSet, setColumnExpression, setId

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

- Constructor Detail
  - BindingItemFromRel
```
public BindingItemFromRel(BindingItem src,
                          Relation relation,
                          java.lang.String id,
                          java.lang.String importCaption)
```
    Parameters:
    
    src - - Corresponding BindingItem in related BindingSet
    
    relation -
    
    id - - is with relation prefix when from a default import
    
    importCaption - - In a Relation we can overwrite the imported BindingItem's caption
- Method Detail
  - getRelation
```
public Relation getRelation()
```
  - getReferencedBindingItem
```
public BindingItem getReferencedBindingItem()
```
  - getQColumnExpression
```
public java.lang.String getQColumnExpression(java.lang.String tableAlias)
```
    Description copied from class: SimpleBindingItem
    
    Helper to merge a table alias into a column expression, which can contain SQL functions etc Method calcQColumnExpression
    
    Overrides:
    
    getQColumnExpression in class SimpleBindingItem
  - getTableAlias
```
public java.lang.String getTableAlias(java.lang.String mainTableAlias)
```
    Returns the table alias of either the main table or the relation, depending on where the source BindingItem belongs to
    
    Parameters:
    
    mainTableAlias -
    
    Returns:
    
    Throws:
    
    BindingNotFoundException