# Class FirebirdSubstringFunctionNode

java.lang.Object
org.apache.cayenne.access.sqlbuilder.sqltree.Node
org.apache.cayenne.access.sqlbuilder.sqltree.FunctionNode
org.apache.cayenne.dba.firebird.sqltree.FirebirdSubstringFunctionNode

public class FirebirdSubstringFunctionNode extends FunctionNode
SUBSTRING function for Firebird It has following format: SUBSTRING (string FROM CAST(? AS INTEGER) FOR CAST(? AS INTEGER))

Since:
  4.1

- ## Field Summary

  ### Fields inherited from class Node

  `children, childrenCount, parent, type`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `FirebirdSubstringFunctionNode(String alias)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `appendChildrenEnd(SQLAppendable buffer)`
  `void`
  `appendChildrenSeparator(SQLAppendable buffer, int childIdx)`
  `Node`
  `copy()`

  ### Methods inherited from class FunctionNode

  `append, appendChildrenStart, equals, getAlias, getFunctionName, hashCode, setAlias, skipContent, visit, wrap`

  ### Methods inherited from class Node

  `addChild, addChild, deepCopy, deepEquals, getChild, getChildrenCount, getParent, getType, replaceChild, setParent, toString`

  ### Methods inherited from class Object

  `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- ## Constructor Details

  - ### FirebirdSubstringFunctionNode

    public FirebirdSubstringFunctionNode(String alias)

- ## Method Details

  - ### appendChildrenSeparator

    public void appendChildrenSeparator(SQLAppendable buffer, int childIdx)
    Overrides:
      `appendChildrenSeparator` in class `FunctionNode`

  - ### appendChildrenEnd

    public void appendChildrenEnd(SQLAppendable buffer)
    Overrides:
      `appendChildrenEnd` in class `FunctionNode`

  - ### copy

    public Node copy()
    Overrides:
      `copy` in class `FunctionNode`