gu.sql2java.geometry

类 GeometryDataCodec

java.lang.Object

gu.sql2java.geometry.GeometryDataCodec

所有已实现的接口:

com.vividsolutions.jts.io.WKBConstants

直接已知子类:

MysqlGeometryDataCodec

public class GeometryDataCodec
extends java.lang.Object
implements com.vividsolutions.jts.io.WKBConstants

存储格式WKB,WKT与Geometry对象之间的互相转换实现基类, 对于不同的数据库，应该继承此类根据数据库存储WKB方式的不同提供合适的实现
子类必须实现toWKB(Object),fromWKB(byte[]),getGeomtyColumnTypes()方法, 否则toWKB(Object),fromWKB(byte[])总是返回null, getGeomtyColumnTypes()方法总是返回空

从以下版本开始:

3.18.0

作者:

guyadong

字段概要

字段

限定符和类型	字段和说明
static GeometryDataCodec	DEFAULT_INSTANCE 默认实例

从接口继承的字段 com.vividsolutions.jts.io.WKBConstants

wkbGeometryCollection, wkbLineString, wkbMultiLineString, wkbMultiPoint, wkbMultiPolygon, wkbNDR, wkbPoint, wkbPolygon, wkbXDR

方法概要

限定符和类型	方法和说明
com.vividsolutions.jts.geom.Geometry	fromWKB(byte[] binary) 将WKB格式的二进制数据解析为Geometry对象
<T extends com.vividsolutions.jts.geom.Geometry> T	fromWKB(byte[] binary, java.lang.Class<T> targetType)
com.vividsolutions.jts.geom.Geometry	fromWKB(java.lang.Object input)
<T extends com.vividsolutions.jts.geom.Geometry> T	fromWKB(java.lang.Object input, java.lang.Class<T> targetType)
com.vividsolutions.jts.geom.Geometry	fromWKT(java.lang.String input)
<T extends com.vividsolutions.jts.geom.Geometry> T	fromWKT(java.lang.String input, java.lang.Class<T> targetType)
<T extends com.vividsolutions.jts.geom.Geometry> T	fromWKTUnchecked(java.lang.String input, java.lang.Class<T> targetType)
java.util.Set<java.lang.String>	getGeomtyColumnTypes() 返回数据库支持的所有空间(几何)数据字段类型,默认返回空集合
boolean	isGeometryDataType(java.sql.ResultSet rs, int columnIndex)
boolean	isGeometryDataType(java.lang.String typeName)
java.lang.Object	readGeometryData(java.sql.ResultSet rs, int columnIndex) 读取数据记录指定字段的值转为空间数据对象,子类需要重写此方法
byte[]	toWKB(java.lang.Object value)
<T extends com.vividsolutions.jts.geom.Geometry> byte[]	toWKB(T input) 将Geometry类型转为适合数据库存储的二进制格式
java.lang.String	toWKT(java.lang.Object input)
<T extends com.vividsolutions.jts.geom.Geometry> java.lang.String	toWKT(T input)

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_INSTANCE

public static final GeometryDataCodec DEFAULT_INSTANCE

默认实例

方法详细资料

toWKB

public <T extends com.vividsolutions.jts.geom.Geometry> byte[] toWKB(T input)

将Geometry类型转为适合数据库存储的二进制格式

类型参数:

T -

参数:

input -

fromWKB

public com.vividsolutions.jts.geom.Geometry fromWKB(byte[] binary)
                                             throws com.vividsolutions.jts.io.ParseException

将WKB格式的二进制数据解析为Geometry对象

参数:

binary -

抛出:

com.vividsolutions.jts.io.ParseException

fromWKB

public final <T extends com.vividsolutions.jts.geom.Geometry> T fromWKB(byte[] binary,
                                                                        java.lang.Class<T> targetType)
                                                                 throws com.vividsolutions.jts.io.ParseException

抛出:

com.vividsolutions.jts.io.ParseException

fromWKB

public final com.vividsolutions.jts.geom.Geometry fromWKB(java.lang.Object input)
                                                   throws com.vividsolutions.jts.io.ParseException

抛出:

com.vividsolutions.jts.io.ParseException

fromWKB

public final <T extends com.vividsolutions.jts.geom.Geometry> T fromWKB(java.lang.Object input,
                                                                        java.lang.Class<T> targetType)
                                                                 throws com.vividsolutions.jts.io.ParseException

抛出:

com.vividsolutions.jts.io.ParseException

fromWKT

public final com.vividsolutions.jts.geom.Geometry fromWKT(java.lang.String input)
                                                   throws com.vividsolutions.jts.io.ParseException

抛出:

com.vividsolutions.jts.io.ParseException

fromWKT

public final <T extends com.vividsolutions.jts.geom.Geometry> T fromWKT(java.lang.String input,
                                                                        java.lang.Class<T> targetType)
                                                                 throws com.vividsolutions.jts.io.ParseException

抛出:

com.vividsolutions.jts.io.ParseException

fromWKTUnchecked

public final <T extends com.vividsolutions.jts.geom.Geometry> T fromWKTUnchecked(java.lang.String input,
                                                                                 java.lang.Class<T> targetType)

toWKT

public final <T extends com.vividsolutions.jts.geom.Geometry> java.lang.String toWKT(T input)

toWKT

public final java.lang.String toWKT(java.lang.Object input)
                             throws com.vividsolutions.jts.io.ParseException

抛出:

com.vividsolutions.jts.io.ParseException

toWKB

public final byte[] toWKB(java.lang.Object value)

getGeomtyColumnTypes

public java.util.Set<java.lang.String> getGeomtyColumnTypes()

返回数据库支持的所有空间(几何)数据字段类型,默认返回空集合

isGeometryDataType

public final boolean isGeometryDataType(java.lang.String typeName)
                                 throws java.sql.SQLException

抛出:

java.sql.SQLException

isGeometryDataType

public final boolean isGeometryDataType(java.sql.ResultSet rs,
                                        int columnIndex)
                                 throws java.sql.SQLException

抛出:

java.sql.SQLException

readGeometryData

public java.lang.Object readGeometryData(java.sql.ResultSet rs,
                                         int columnIndex)
                                  throws java.sql.SQLException

读取数据记录指定字段的值转为空间数据对象,子类需要重写此方法

参数:

rs -

columnIndex -

抛出:

java.sql.SQLException