Package org.jfree.data.json.impl
Class JSONValue
- java.lang.Object
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- org.jfree.data.json.impl.JSONValue
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public class JSONValue extends java.lang.Object
Utility methods for JSON values.
This class is for internal use by JFreeChart, it is not part of the supported API and you should not call it directly. If you need JSON support in your project you should include JSON.simple (https://code.google.com/p/json-simple/) or some other JSON library directly in your project.
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Constructor Summary
Constructors Constructor Description JSONValue()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static java.lang.String
escape(java.lang.String s)
Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).(package private) static void
escape(java.lang.String s, java.lang.StringBuffer sb)
static java.lang.String
toJSONString(java.lang.Object value)
Convert an object to JSON text.static void
writeJSONString(java.lang.Object value, java.io.Writer out)
Encode an object into JSON text and write it to out.
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Method Detail
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writeJSONString
public static void writeJSONString(java.lang.Object value, java.io.Writer out) throws java.io.IOException
Encode an object into JSON text and write it to out.If this object is a
Map
or aList
, and it's also aJSONStreamAware
or aJSONAware
,JSONStreamAware
orJSONAware
will be considered firstly.DO NOT call this method from writeJSONString(Writer) of a class that implements both JSONStreamAware and (Map or List) with "this" as the first parameter, use JSONObject.writeJSONString(Map, Writer) or JSONArray.writeJSONString(List, Writer) instead.
- Parameters:
value
- the value.out
- the output writer.- Throws:
java.io.IOException
- if there is an I/O problem.- See Also:
JSONObject.writeJSONString(Map, Writer)
,JSONArray.writeJSONString(List, Writer)
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toJSONString
public static java.lang.String toJSONString(java.lang.Object value)
Convert an object to JSON text.If this object is a Map or a List, and it's also a JSONAware, JSONAware will be considered firstly.
DO NOT call this method from toJSONString() of a class that implements both JSONAware and Map or List with "this" as the parameter, use JSONObject.toJSONString(Map) or JSONArray.toJSONString(List) instead.
- Parameters:
value
- the value.- Returns:
- JSON text, or "null" if value is null or it's an NaN or an INF number.
- See Also:
JSONObject.toJSONString(Map)
,JSONArray.toJSONString(List)
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escape
public static java.lang.String escape(java.lang.String s)
Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).- Parameters:
s
- the string to be escaped (null
permitted).- Returns:
- A string.
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escape
static void escape(java.lang.String s, java.lang.StringBuffer sb)
- Parameters:
s
- - Must not be null.sb
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