psdi.common.parse

Class IsNullNode

java.lang.Object

psdi.common.parse.TreeNodeAdapter

psdi.common.parse.BooleanTreeNodeAdapter

psdi.common.parse.IsNullNode

All Implemented Interfaces:

TreeNode

public class IsNullNode
extends BooleanTreeNodeAdapter

The IsNull node. Returns true if the attribute specified is null.

Constructor Summary

Constructors

Constructor and Description
IsNullNode(java.lang.String attribute) Constructor takes operands

Method Summary

Modifier and Type	Method and Description
protected java.lang.String	childrenInfoString() Sub-classes should override this method to return the result of toString on each child, separated by new lines.
boolean	getBoolean(MboRemote mbo) Checks attribute for null.
protected java.lang.String	parentInfoString() Sub-classes should override this method to create a string which provides information for the parent node only.

Methods inherited from class psdi.common.parse.BooleanTreeNodeAdapter

getDate, getDouble, getInt, getNodeDataType, getString, setOperands

Methods inherited from class psdi.common.parse.TreeNodeAdapter

getNodeDataType, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IsNullNode

public IsNullNode(java.lang.String attribute)

Constructor takes operands

Method Detail

getBoolean

public boolean getBoolean(MboRemote mbo)
                   throws MXException,
                          java.rmi.RemoteException

Checks attribute for null.

Throws:

MXException

java.rmi.RemoteException

parentInfoString

protected java.lang.String parentInfoString()

Sub-classes should override this method to create a string which provides information for the parent node only. The string created should be a single line.

Specified by:

parentInfoString in class TreeNodeAdapter

childrenInfoString

protected java.lang.String childrenInfoString()

Sub-classes should override this method to return the result of toString on each child, separated by new lines. If the node has no children, this method should return null or the empty string. If the node has 3 children the output should look like:

\n
\n

Note there is no new line character after the last child.

Specified by:

childrenInfoString in class TreeNodeAdapter