com.esri.arcgis.system

Class JSONReader

java.lang.Object

com.esri.arcgis.system.JSONReader

All Implemented Interfaces:

com.esri.arcgis.interop.RemoteObjRef, IJSONReader, IJSONReader2, ISupportErrorInfo, java.io.Serializable

public class JSONReader
extends java.lang.Object
implements com.esri.arcgis.interop.RemoteObjRef, IJSONReader, IJSONReader2, ISupportErrorInfo

COM Class 'JSONReader'. Generated 5/5/2025 2:28:33 PM from 'X:\ArcGIS\com\server\esriSystem.tlb'

Description 'A sequential JSON Reader.' Generator Options: PromptForTypeLibraries = False ClashPrefix = esri_ LowerCaseMemberNames = True IDispatchOnly = False RetryOnReject = False AwtForOcxs = True ArraysAsObjects = False DontRenameSameMethods = False ImplementConflictingInterfaces = True ReuseMethods = True RenameConflictingInterfaceMethods = True GenBeanInfo = True GenerateJavadoc =

See Also:

Serialized Form

Field Summary

Fields inherited from interface com.esri.arcgis.system.IJSONReader2

IID, IID2c573605_c449_47e3_a483_f441192840fa, xxDummy

Fields inherited from interface com.esri.arcgis.system.IJSONReader

IID48105a80_e0dc_4d69_bb61_3df74cafa52c

Fields inherited from interface com.esri.arcgis.system.ISupportErrorInfo

IID, IIDdf0b3d60_548f_101b_8e65_08002b2bd119, xxDummy

Constructor Summary

Constructors

Constructor and Description
JSONReader() Constructs a JSONReader using ArcGIS Engine.
JSONReader(java.lang.Object obj) Deprecated. As of ArcGIS 9.2, replaced by normal Java casts. JSONReader theJSONReader = (JSONReader) obj;

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Compare this object with another
int	findProperties(IStringArray propnames) Reads current object until one of property names matches.
boolean	findProperty(java.lang.String propname) Reads current object until property name matches or object ends.
static java.lang.String	getClsid() getClsid.
int	getCurrentTokenType() Obtains type of current token.
com.esri.arcgis.interop.Dispatch	getJintegraDispatch() Gets a reference to a com.esri.arcgis.interop.Dispatch which can be used to access the COM object that support for this interface indicates the implementing class references.
IStream	getStream() Obtains underlying stream.
int	hashCode() the hashcode for this object
void	interfaceSupportsErrorInfo(GUID riid) interfaceSupportsErrorInfo
boolean	isBoolean() Indicates true if current token is a property value or array value of boolean type.
boolean	isEndOfArray() Indicates true if current token is ']'.
boolean	isEndOfObject() Indicates true if current token is '}'.
boolean	isNull() Indicates true if current token is a property value or array value and equals to null.
boolean	isNumber() Indicates true if current token is a property value or array value of numeric type.
boolean	isStartOfArray() Indicates true if current token is '['.
boolean	isStartOfObject() Indicates true if current token is '{'.
boolean	isString() Indicates true if current token is a property value or array value of type string.
java.lang.Object	parseJSONString(java.lang.String json) Parses JSON string into memory.
void	read() Reads next JSON token.
void	readFrom(IStream inputStream) Specifies input stream.
void	readFromString(java.lang.String text) Specifies input as string.
java.lang.String	readPropertyName() Obtains property name.
java.lang.Object	readValue() Obtains array or property value as Variant.
boolean	readValueAsBoolean() Obtains array or property value as boolean.
java.util.Date	readValueAsDate() Obtains property or array value as date.
double	readValueAsDouble() Obtains property or array value as number.
int	readValueAsLong() Obtains property or array value as number.
java.lang.String	readValueAsString() Obtains property or array value as string.
void	readValueEx(java.lang.Object[] pVal, int[] precision) Obtains array or property value as Variant along with precision if it is a double.
void	release() Release this COM object reference
void	removeAllBookmarks() Removes all bookmarks.
void	removeBookmark(java.lang.String name) Moves the reader back to a token that has a bookmark with the given name.
void	returnToBookmark(java.lang.String name) Moves the reader back to a token that has a bookmark with the given name.
void	setBookmark(java.lang.String name) Creates a bookmark on the current token and assigns it a name.
void	skipUntilArrayEnds() Skips the rest of the current object, including closing bracket.
void	skipUntilObjectEnds() Skips the rest of the current object, including closing bracket.

Methods inherited from class java.lang.Object

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

Constructor Detail

JSONReader

public JSONReader()
           throws java.io.IOException,
                  java.net.UnknownHostException

Constructs a JSONReader using ArcGIS Engine.

Throws:

java.io.IOException - if there are interop problems

java.net.UnknownHostException - if there are interop problems

JSONReader

public JSONReader(java.lang.Object obj)
           throws java.io.IOException

Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.
JSONReader theJSONReader = (JSONReader) obj;

Construct a JSONReader using a reference to such an object returned from ArcGIS Engine or Server. This is semantically equivalent to casting obj to JSONReader.

Parameters:

obj - an object returned from ArcGIS Engine or Server

Throws:

java.io.IOException - if there are interop problems

Method Detail

getClsid

public static java.lang.String getClsid()

getClsid.

equals

public boolean equals(java.lang.Object o)

Compare this object with another

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

the hashcode for this object

Overrides:

hashCode in class java.lang.Object

getJintegraDispatch

public com.esri.arcgis.interop.Dispatch getJintegraDispatch()

Gets a reference to a com.esri.arcgis.interop.Dispatch which can be used to access the COM object that support for this interface indicates the implementing class references.

Specified by:

getJintegraDispatch in interface com.esri.arcgis.interop.RemoteObjRef

Returns:

the COM object reference

release

public void release()

Release this COM object reference

Specified by:

release in interface com.esri.arcgis.interop.RemoteObjRef

readFrom

public void readFrom(IStream inputStream)
              throws java.io.IOException,
                     AutomationException

Specifies input stream.

Specified by:

readFrom in interface IJSONReader

Parameters:

inputStream - A reference to a com.esri.arcgis.system.IStream (in)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readFromString

public void readFromString(java.lang.String text)
                    throws java.io.IOException,
                           AutomationException

Specifies input as string.

Specified by:

readFromString in interface IJSONReader

Parameters:

text - The text (in)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getStream

public IStream getStream()
                  throws java.io.IOException,
                         AutomationException

Obtains underlying stream.

Specified by:

getStream in interface IJSONReader

Returns:

A reference to a com.esri.arcgis.system.IStream

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

read

public void read()
          throws java.io.IOException,
                 AutomationException

Reads next JSON token.

Specified by:

read in interface IJSONReader

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getCurrentTokenType

public int getCurrentTokenType()
                        throws java.io.IOException,
                               AutomationException

Obtains type of current token.

Specified by:

getCurrentTokenType in interface IJSONReader

Returns:

A com.esri.arcgis.system.JSONTokenType constant

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isStartOfObject

public boolean isStartOfObject()
                        throws java.io.IOException,
                               AutomationException

Indicates true if current token is '{'.

Specified by:

isStartOfObject in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isEndOfObject

public boolean isEndOfObject()
                      throws java.io.IOException,
                             AutomationException

Indicates true if current token is '}'.

Specified by:

isEndOfObject in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isStartOfArray

public boolean isStartOfArray()
                       throws java.io.IOException,
                              AutomationException

Indicates true if current token is '['.

Specified by:

isStartOfArray in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isEndOfArray

public boolean isEndOfArray()
                     throws java.io.IOException,
                            AutomationException

Indicates true if current token is ']'.

Specified by:

isEndOfArray in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isString

public boolean isString()
                 throws java.io.IOException,
                        AutomationException

Indicates true if current token is a property value or array value of type string.

Specified by:

isString in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isNumber

public boolean isNumber()
                 throws java.io.IOException,
                        AutomationException

Indicates true if current token is a property value or array value of numeric type.

Specified by:

isNumber in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isBoolean

public boolean isBoolean()
                  throws java.io.IOException,
                         AutomationException

Indicates true if current token is a property value or array value of boolean type.

Specified by:

isBoolean in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isNull

public boolean isNull()
               throws java.io.IOException,
                      AutomationException

Indicates true if current token is a property value or array value and equals to null.

Specified by:

isNull in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readValue

public java.lang.Object readValue()
                           throws java.io.IOException,
                                  AutomationException

Obtains array or property value as Variant. Advances to the next token.

Specified by:

readValue in interface IJSONReader

Returns:

A Variant

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readPropertyName

public java.lang.String readPropertyName()
                                  throws java.io.IOException,
                                         AutomationException

Obtains property name. Advances to the next token.

Specified by:

readPropertyName in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readValueAsString

public java.lang.String readValueAsString()
                                   throws java.io.IOException,
                                          AutomationException

Obtains property or array value as string. Advances to the next token. If property value cannot be coerced to string, returns E_FAIL.

Specified by:

readValueAsString in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readValueAsLong

public int readValueAsLong()
                    throws java.io.IOException,
                           AutomationException

Obtains property or array value as number. Advances to the next token. If property value cannot be coerced to long, returns E_FAIL.

Specified by:

readValueAsLong in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readValueAsDouble

public double readValueAsDouble()
                         throws java.io.IOException,
                                AutomationException

Obtains property or array value as number. Advances to the next token. If property value cannot be coerced to double, returns E_FAIL.

Specified by:

readValueAsDouble in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readValueAsBoolean

public boolean readValueAsBoolean()
                           throws java.io.IOException,
                                  AutomationException

Obtains array or property value as boolean. Advances to the next token. If property value cannot be coerced to boolean, returns E_FAIL.

Specified by:

readValueAsBoolean in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readValueAsDate

public java.util.Date readValueAsDate()
                               throws java.io.IOException,
                                      AutomationException

Obtains property or array value as date. Advances to the next token. If property value cannot be coerced to datetime, returns E_FAIL.

Specified by:

readValueAsDate in interface IJSONReader

Returns:

The pVal

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

findProperty

public boolean findProperty(java.lang.String propname)
                     throws java.io.IOException,
                            AutomationException

Reads current object until property name matches or object ends. Case is ignored.

Specified by:

findProperty in interface IJSONReader

Parameters:

propname - The propname (in)

Returns:

The found

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

findProperties

public int findProperties(IStringArray propnames)
                   throws java.io.IOException,
                          AutomationException

Reads current object until one of property names matches. Case is ignored. Return value is an index of property name that matched, otherwise -1.

Specified by:

findProperties in interface IJSONReader

Parameters:

propnames - A reference to a com.esri.arcgis.system.IStringArray (in)

Returns:

The index

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

skipUntilObjectEnds

public void skipUntilObjectEnds()
                         throws java.io.IOException,
                                AutomationException

Skips the rest of the current object, including closing bracket.

Specified by:

skipUntilObjectEnds in interface IJSONReader

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

skipUntilArrayEnds

public void skipUntilArrayEnds()
                        throws java.io.IOException,
                               AutomationException

Skips the rest of the current object, including closing bracket.

Specified by:

skipUntilArrayEnds in interface IJSONReader

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

parseJSONString

public java.lang.Object parseJSONString(java.lang.String json)
                                 throws java.io.IOException,
                                        AutomationException

Parses JSON string into memory. Returns either IJSONObject or IJSONArray in a 'root' parameter. Doesn't change state of existing IJSONReader2 instance.

Specified by:

parseJSONString in interface IJSONReader2

Parameters:

json - The json (in)

Returns:

A reference to another Object (IUnknown)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setBookmark

public void setBookmark(java.lang.String name)
                 throws java.io.IOException,
                        AutomationException

Creates a bookmark on the current token and assigns it a name. Only works if you use ReadFromString(), otherwise returns E_FAIL.

Specified by:

setBookmark in interface IJSONReader2

Parameters:

name - The name (in)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

returnToBookmark

public void returnToBookmark(java.lang.String name)
                      throws java.io.IOException,
                             AutomationException

Moves the reader back to a token that has a bookmark with the given name.

Specified by:

returnToBookmark in interface IJSONReader2

Parameters:

name - The name (in)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

removeBookmark

public void removeBookmark(java.lang.String name)
                    throws java.io.IOException,
                           AutomationException

Moves the reader back to a token that has a bookmark with the given name.

Specified by:

removeBookmark in interface IJSONReader2

Parameters:

name - The name (in)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

removeAllBookmarks

public void removeAllBookmarks()
                        throws java.io.IOException,
                               AutomationException

Removes all bookmarks.

Specified by:

removeAllBookmarks in interface IJSONReader2

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

readValueEx

public void readValueEx(java.lang.Object[] pVal,
                        int[] precision)
                 throws java.io.IOException,
                        AutomationException

Obtains array or property value as Variant along with precision if it is a double. Advances to the next token.

Specified by:

readValueEx in interface IJSONReader2

Parameters:

pVal - A Variant (out: use single element array)

precision - The precision (out: use single element array)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

interfaceSupportsErrorInfo

public void interfaceSupportsErrorInfo(GUID riid)
                                throws java.io.IOException,
                                       AutomationException

interfaceSupportsErrorInfo

Specified by:

interfaceSupportsErrorInfo in interface ISupportErrorInfo

Parameters:

riid - A Structure: com.esri.arcgis.support.ms.stdole.GUID (in)

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.