blob: d87bbedbaa434aa2cc0a238bcdf4d3afd815e2ef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/**
*
* This implements a path (a multiple segmented line, which may be closed)
*
*/
package postgresql;
import java.io.*;
import java.sql.*;
public class PGpath implements Serializable
{
public int npoints;
public boolean open;
public PGpoint point[];
public PGpath(int num,PGpoint[] points,boolean open)
{
npoints = num;
this.point = points;
this.open = open;
}
/**
* This constructor is used by the driver.
*/
public PGpath(String s) throws SQLException
{
// First test to see if were open
if(s.startsWith("[") && s.endsWith("]")) {
open = true;
s = PGtokenizer.removeBox(s);
} else if(s.startsWith("(") && s.endsWith(")")) {
open = false;
s = PGtokenizer.removePara(s);
} else
throw new SQLException("cannot tell if path is open or closed");
PGtokenizer t = new PGtokenizer(s,',');
npoints = t.getSize();
point = new PGpoint[npoints];
for(int p=0;p<npoints;p++)
point[p] = new PGpoint(t.getToken(p));
}
public boolean equals(Object obj)
{
PGpath p = (PGpath)obj;
if(p.npoints != npoints)
return false;
if(p.open != open)
return false;
for(int i=0;i<npoints;i++)
if(!point[i].equals(p.point[i]))
return false;
return true;
}
/**
* This returns the polygon in the syntax expected by postgresql
*/
public String toString()
{
StringBuffer b = new StringBuffer(open?"[":"(");
for(int p=0;p<npoints;p++)
b.append(point[p].toString());
b.append(open?"]":")");
return b.toString();
}
public boolean isOpen()
{
return open;
}
public boolean isClosed()
{
return !open;
}
public void closePath()
{
open = false;
}
public void openPath()
{
open = true;
}
}
|
