Package org.h2.util.geometry
Class EWKTUtils.EWKTTarget
java.lang.Object
org.h2.util.geometry.GeometryUtils.Target
org.h2.util.geometry.EWKTUtils.EWKTTarget
- Enclosing class:
EWKTUtils
Converter output target that writes a EWKT.
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate final int
private boolean
private final StringBuilder
private int
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Constructor Summary
ConstructorsConstructorDescriptionEWKTTarget
(StringBuilder output, int dimensionSystem) Creates a new EWKT output target. -
Method Summary
Modifier and TypeMethodDescriptionprotected void
addCoordinate
(double x, double y, double z, double m, int index, int total) Invoked to add a coordinate to a geometry.protected void
endCollectionItem
(GeometryUtils.Target target, int type, int index, int total) Invoked after writing of a collection item.protected void
Invoked after writing of non-empty POLYGON.protected void
endObject
(int type) Invoked after writing of the object.protected void
init
(int srid) Initializes top-level target.protected void
startCollection
(int type, int numItems) Invoked before writing of a collection.protected GeometryUtils.Target
startCollectionItem
(int index, int total) Invoked before writing of a collection item.protected void
startLineString
(int numPoints) Invoked before writing a LINESTRING.protected void
Invoked before writing a POINT.protected void
startPolygon
(int numInner, int numPoints) Invoked before writing a POLYGON.protected void
startPolygonInner
(int numInner) Invoked before writing an inner polygon in POLYGON.private void
writeDouble
(double v) private void
writeHeader
(int type) Methods inherited from class org.h2.util.geometry.GeometryUtils.Target
dimensionSystem
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Field Details
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output
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dimensionSystem
private final int dimensionSystem -
type
private int type -
inMulti
private boolean inMulti
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Constructor Details
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EWKTTarget
Creates a new EWKT output target.- Parameters:
output
- output streamdimensionSystem
- dimension system to use
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Method Details
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init
protected void init(int srid) Description copied from class:GeometryUtils.Target
Initializes top-level target.- Overrides:
init
in classGeometryUtils.Target
- Parameters:
srid
- SRID
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startPoint
protected void startPoint()Description copied from class:GeometryUtils.Target
Invoked before writing a POINT.- Overrides:
startPoint
in classGeometryUtils.Target
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startLineString
protected void startLineString(int numPoints) Description copied from class:GeometryUtils.Target
Invoked before writing a LINESTRING.- Overrides:
startLineString
in classGeometryUtils.Target
- Parameters:
numPoints
- number of points in line string
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startPolygon
protected void startPolygon(int numInner, int numPoints) Description copied from class:GeometryUtils.Target
Invoked before writing a POLYGON. If polygon is empty, both parameters are 0.- Overrides:
startPolygon
in classGeometryUtils.Target
- Parameters:
numInner
- number of inner polygonsnumPoints
- number of points in outer polygon
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startPolygonInner
protected void startPolygonInner(int numInner) Description copied from class:GeometryUtils.Target
Invoked before writing an inner polygon in POLYGON.- Overrides:
startPolygonInner
in classGeometryUtils.Target
- Parameters:
numInner
- number of points in inner polygon
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endNonEmptyPolygon
protected void endNonEmptyPolygon()Description copied from class:GeometryUtils.Target
Invoked after writing of non-empty POLYGON.- Overrides:
endNonEmptyPolygon
in classGeometryUtils.Target
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startCollection
protected void startCollection(int type, int numItems) Description copied from class:GeometryUtils.Target
Invoked before writing of a collection.- Overrides:
startCollection
in classGeometryUtils.Target
- Parameters:
type
- type of collection, one ofGeometryUtils.MULTI_POINT
,GeometryUtils.MULTI_LINE_STRING
,GeometryUtils.MULTI_POLYGON
,GeometryUtils.GEOMETRY_COLLECTION
numItems
- number of items in this collection
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writeHeader
private void writeHeader(int type) -
startCollectionItem
Description copied from class:GeometryUtils.Target
Invoked before writing of a collection item.- Overrides:
startCollectionItem
in classGeometryUtils.Target
- Parameters:
index
- 0-based index of this item in the collectiontotal
- total number of items in the collection- Returns:
- output target that should be used for processing of this collection item. May return this target or an custom sub-target.
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endCollectionItem
Description copied from class:GeometryUtils.Target
Invoked after writing of a collection item. This method is invoked on the same target that was used forGeometryUtils.Target.startCollectionItem(int, int)
.- Overrides:
endCollectionItem
in classGeometryUtils.Target
- Parameters:
target
- the result ofGeometryUtils.Target.startCollectionItem(int, int)
type
- type of collectionindex
- 0-based index of this item in the collectiontotal
- total number of items in the collection
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endObject
protected void endObject(int type) Description copied from class:GeometryUtils.Target
Invoked after writing of the object.- Overrides:
endObject
in classGeometryUtils.Target
- Parameters:
type
- type of the object
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addCoordinate
protected void addCoordinate(double x, double y, double z, double m, int index, int total) Description copied from class:GeometryUtils.Target
Invoked to add a coordinate to a geometry.- Specified by:
addCoordinate
in classGeometryUtils.Target
- Parameters:
x
- X coordinatey
- Y coordinatez
- Z coordinate (NaN if not used)m
- M coordinate (NaN if not used)index
- 0-based index of coordinate in the current sequencetotal
- total number of coordinates in the current sequence
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writeDouble
private void writeDouble(double v)
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