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## org.apache.cayenne.project
Class ProjectPath

    java.lang.Object
      org.apache.cayenne.project.ProjectPath

    public class ProjectPath

extends java.lang.Object

Immutable holder of a selection path within a Cayenne project. Mostly used by various tools (CayenneModeler comes to mind) to navigate Cayenne projects. Contains a number of convenience methods to access path elements.

For instance, given a path `Project -> DataMap -> ObjEntity -> ObjAttribute`, `getObject` will return ObjAttribute, `getObjectParent`- ObjEntity, `getRoot`- Project.

Author:
  Andrei Adamchik

Field Summary
`static java.lang.Object[]` | `EMPTY_PATH`
`protected java.lang.Object[]` | `path`

Constructor Summary
`ProjectPath()`
`ProjectPath(java.lang.Object object)` Constructor for ProjectPath.
`ProjectPath(java.lang.Object[] path)` Constructor for ProjectPath.

Method Summary
`ProjectPath` | `appendToPath(java.lang.Object object)` Returns an instance of the path, expanding this one by appending an object at the end.
`boolean` | `equals(java.lang.Object object)`
`java.lang.Object` | `firstInstanceOf(java.lang.Class aClass)` Scans path, looking for the first element that is an instanceof `aClass`.
`java.lang.Object` | `getObject()` Returns the last object in the path.
`java.lang.Object` | `getObjectParent()` Returns an object corresponding to the parent node of the node represented by the path.
`java.lang.Object[]` | `getPath()`
`java.lang.Object` | `getRoot()` Returns the root or starting object of the path.
`boolean` | `isEmpty()`
`ProjectPath` | `subpathOfObject(java.lang.Object object)` Returns a subpath to the first occurance of an object.
`ProjectPath` | `subpathWithSize(int subpathSize)`
`java.lang.String` | `toString()`

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

Field Detail

### EMPTY_PATH

    public static final java.lang.Object[] EMPTY_PATH

### path

    protected java.lang.Object[] path

Constructor Detail

### ProjectPath

    public ProjectPath()

### ProjectPath

    public ProjectPath(java.lang.Object object)

  Constructor for ProjectPath.

### ProjectPath

    public ProjectPath(java.lang.Object[] path)

  Constructor for ProjectPath.

Method Detail

### getPath

    public java.lang.Object[] getPath()

### isEmpty

    public boolean isEmpty()

### firstInstanceOf

    public java.lang.Object firstInstanceOf(java.lang.Class aClass)

  Scans path, looking for the first element that is an instanceof `aClass`.

### appendToPath

    public ProjectPath appendToPath(java.lang.Object object)

  Returns an instance of the path, expanding this one by appending an object at the end.

### subpathWithSize

    public ProjectPath subpathWithSize(int subpathSize)

  Since:
    1.1

### subpathOfObject

    public ProjectPath subpathOfObject(java.lang.Object object)

  Returns a subpath to the first occurance of an object.

  Since:
    1.1

### getRoot

    public java.lang.Object getRoot()

  Returns the root or starting object of the path.

### getObject

    public java.lang.Object getObject()

  Returns the last object in the path.

### getObjectParent

    public java.lang.Object getObjectParent()

  Returns an object corresponding to the parent node of the node represented by the path. This is the object next to last object in the path.

### toString

    public java.lang.String toString()

  Overrides:
    `toString` in class `java.lang.Object`

### equals

    public boolean equals(java.lang.Object object)

  Overrides:
    `equals` in class `java.lang.Object`

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