ComposedGeom (Postgis JDBC Driver 2.1.7.2 API)

java.lang.Object
- org.postgis.Geometry
- - org.postgis.ComposedGeom

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

GeometryCollection, MultiLineString, MultiPolygon, PointComposedGeom, Polygon
```
public abstract class ComposedGeom
extends Geometry
```
ComposedGeom - Abstract base class for all Geometries that are composed out of other Geometries. In fact, this currently are all Geometry subclasses except Point.

Author:

markus.schaber@logix-tt.com

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static Geometry[]`	`EMPTY`
`protected Geometry[]`	`subgeoms` The Array containing the geometries This is only to be exposed by concrete subclasses, to retain type safety.

Fields inherited from class org.postgis.Geometry
ALLTYPES, dimension, GEOMETRYCOLLECTION, haveMeasure, LINEARRING, LINESTRING, MULTILINESTRING, MULTIPOINT, MULTIPOLYGON, POINT, POLYGON, srid, type, UNKNOWN_SRID

Constructor Summary

Constructors
Modifier	Constructor and Description
	`ComposedGeom(int type)`
`protected`	`ComposedGeom(int type, Geometry[] geoms)`
`protected`	`ComposedGeom(int type, String value, boolean haveM)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`checkConsistency()` Do some internal consistency checks on the geometry.
`protected abstract Geometry[]`	`createSubGeomArray(int size)` Return the appropriate instance of the subgeometry array - this encapsulates subclass specific array instantiation
`protected abstract Geometry`	`createSubGeomInstance(String token, boolean haveM)` Return the appropriate instance of the subgeometry - this encapsulates subclass specific constructor calls
`protected boolean`	`equalsintern(Geometry other)` Whether test coordinates for geometry - subclass specific code Implementors can assume that dimensin, type, srid and haveMeasure are equal, other != null and other is the same subclass.
`Point`	`getFirstPoint()` Optimized version
`Point`	`getLastPoint()` Optimized version
`Point`	`getPoint(int n)` Get the nth Point of the geometry
`Geometry`	`getSubGeometry(int index)`
`int`	`hashCode()` java.lang.Object hashCode implementation
`protected void`	`innerWKT(StringBuffer sb)` Render the "inner" part of the WKT (inside the brackets) into the StringBuffer.
`boolean`	`isEmpty()`
`Iterator`	`iterator()`
`protected void`	`mediumWKT(StringBuffer sb)` Render the WKT without the type name, but including the brackets into the StringBuffer
`int`	`numGeoms()`
`int`	`numPoints()` Return the number of Points of the geometry
`void`	`setSrid(int srid)` Recursively sets the srid on this geometry and all contained subgeometries

Methods inherited from class org.postgis.Geometry
equals, equals, getDimension, getSrid, getType, getTypeString, getTypeString, getValue, initSRID, isMeasured, outerWKT, outerWKT, parseSRID, toString

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

- Field Detail
  - EMPTY
```
public static final Geometry[] EMPTY
```
  - subgeoms
```
protected Geometry[] subgeoms
```
    The Array containing the geometries This is only to be exposed by concrete subclasses, to retain type safety.
- Constructor Detail
  - ComposedGeom
```
public ComposedGeom(int type)
```
    Parameters:
    
    type -
  - ComposedGeom
```
protected ComposedGeom(int type,
                       Geometry[] geoms)
```
  - ComposedGeom
```
protected ComposedGeom(int type,
                       String value,
                       boolean haveM)
                throws SQLException
```
    Throws:
    
    SQLException
- Method Detail
  - getSubGeometry
```
public Geometry getSubGeometry(int index)
```
  - numGeoms
```
public int numGeoms()
```
  - createSubGeomInstance
```
protected abstract Geometry createSubGeomInstance(String token,
                                                  boolean haveM)
                                           throws SQLException
```
    Return the appropriate instance of the subgeometry - this encapsulates subclass specific constructor calls
    
    Throws:
    
    SQLException
  - createSubGeomArray
```
protected abstract Geometry[] createSubGeomArray(int size)
```
    Return the appropriate instance of the subgeometry array - this encapsulates subclass specific array instantiation
  - equalsintern
```
protected boolean equalsintern(Geometry other)
```
    Description copied from class: Geometry
    
    Whether test coordinates for geometry - subclass specific code Implementors can assume that dimensin, type, srid and haveMeasure are equal, other != null and other is the same subclass.
    
    Specified by:
    
    equalsintern in class Geometry
  - numPoints
```
public int numPoints()
```
    Description copied from class: Geometry
    
    Return the number of Points of the geometry
    
    Specified by:
    
    numPoints in class Geometry
  - getPoint
```
public Point getPoint(int n)
```
    Description copied from class: Geometry
    
    Get the nth Point of the geometry
    
    Specified by:
    
    getPoint in class Geometry
    
    Parameters:
    
    n - the index of the point, from 0 to numPoints()-1;
  - getLastPoint
```
public Point getLastPoint()
```
    Optimized version
    
    Specified by:
    
    getLastPoint in class Geometry
  - getFirstPoint
```
public Point getFirstPoint()
```
    Optimized version
    
    Specified by:
    
    getFirstPoint in class Geometry
  - iterator
```
public Iterator iterator()
```
  - isEmpty
```
public boolean isEmpty()
```
  - mediumWKT
```
protected void mediumWKT(StringBuffer sb)
```
    Description copied from class: Geometry
    
    Render the WKT without the type name, but including the brackets into the StringBuffer
    
    Overrides:
    
    mediumWKT in class Geometry
  - innerWKT
```
protected void innerWKT(StringBuffer sb)
```
    Description copied from class: Geometry
    
    Render the "inner" part of the WKT (inside the brackets) into the StringBuffer.
    
    Specified by:
    
    innerWKT in class Geometry
  - hashCode
```
public int hashCode()
```
    Description copied from class: Geometry
    
    java.lang.Object hashCode implementation
    
    Overrides:
    
    hashCode in class Geometry
  - checkConsistency
```
public boolean checkConsistency()
```
    Description copied from class: Geometry
    
    Do some internal consistency checks on the geometry. Currently, all Geometries must have a valid dimension (2 or 3) and a valid type. 2-dimensional Points must have Z=0.0, as well as non-measured Points must have m=0.0. Composed geometries must have all equal SRID, dimensionality and measures, as well as that they do not contain NULL or inconsistent subgeometries. BinaryParser and WKTParser should only generate consistent geometries. BinaryWriter may produce invalid results on inconsistent geometries.
    
    Overrides:
    
    checkConsistency in class Geometry
    
    Returns:
    
    true if all checks are passed.
  - setSrid
```
public void setSrid(int srid)
```
    Description copied from class: Geometry
    
    Recursively sets the srid on this geometry and all contained subgeometries
    
    Overrides:
    
    setSrid in class Geometry

Class ComposedGeom

Field Summary

Fields inherited from class org.postgis.Geometry

Constructor Summary

Method Summary

Methods inherited from class org.postgis.Geometry

Methods inherited from class java.lang.Object

Field Detail

EMPTY

subgeoms

Constructor Detail

ComposedGeom

ComposedGeom

ComposedGeom

Method Detail

getSubGeometry

numGeoms

createSubGeomInstance

createSubGeomArray

equalsintern

numPoints

getPoint

getLastPoint

getFirstPoint

iterator

isEmpty

mediumWKT

innerWKT

hashCode

checkConsistency

setSrid