org.das2.catalog.impl

Class AbstractSrcNode

java.lang.Object

org.das2.catalog.impl.AbstractNode

org.das2.catalog.impl.AbstractSrcNode

All Implemented Interfaces:

DasNode, DasSrcNode

Direct Known Subclasses:

HttpGetSrcNode

public abstract class AbstractSrcNode
extends AbstractNode
implements DasSrcNode

All nodes which present query parameters to higher level data readers should inherit from this class. In addition to the standard 3-phase construction interface, this abstract class adds the ability to have query parameters and provide verification of parameter values. It can also provide example download URLs

Field Summary

Fields inherited from class org.das2.catalog.impl.AbstractNode

lLocs, parent, sName

Constructor Summary

Constructors

Constructor and Description
AbstractSrcNode(DasDirNode parent, java.lang.String name, java.util.List<java.lang.String> lUrls)

Method Summary

Modifier and Type	Method and Description
boolean	isDir() Can this catalog node have the sub-nodes?
boolean	isInfo() Is this object an information node.
boolean	isSrc() Can this catalog node provide data

Methods inherited from class org.das2.catalog.impl.AbstractNode

getRoot, isRoot, name, path, prettyPrintLoc, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.das2.catalog.DasSrcNode

query, queryVerify

Methods inherited from interface org.das2.catalog.DasNode

getRoot, isLoaded, isRoot, load, name, path, prop, prop, toString, type

Constructor Detail

AbstractSrcNode

public AbstractSrcNode(DasDirNode parent,
                       java.lang.String name,
                       java.util.List<java.lang.String> lUrls)

Method Detail

isSrc

public boolean isSrc()

Description copied from interface: DasNode

Can this catalog node provide data

Specified by:

isSrc in interface DasNode

Returns:

true if this node describes one or more data sources

isDir

public boolean isDir()

Description copied from interface: DasNode

Can this catalog node have the sub-nodes?

Specified by:

isDir in interface DasNode

Returns:

true if this node can have child nodes, not that it necessarily contains any.

isInfo

public boolean isInfo()

Description copied from interface: DasNode

Is this object an information node.

Specified by:

isInfo in interface DasNode

Returns:

true if this node in the catalog provides a description of a mission, spacecraft, instrument, person or any other item category