java.lang.Object
- org.apache.tomcat.websocket.Constants

```
public class Constants
extends Object
```
Internal implementation constants.

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`AUTHORIZATION_HEADER_NAME`
`static String`	`BLOCKING_SEND_TIMEOUT_PROPERTY`
`static String`	`CONNECTION_HEADER_NAME`
`static String`	`CONNECTION_HEADER_VALUE`
`static long`	`DEFAULT_BLOCKING_SEND_TIMEOUT`
`static int`	`FOUND`
`static String`	`HOST_HEADER_NAME`
`static List<Extension>`	`INSTALLED_EXTENSIONS`
`static long`	`IO_TIMEOUT_MS_DEFAULT`
`static String`	`IO_TIMEOUT_MS_PROPERTY`	Property name to set to configure the timeout (in milliseconds) when establishing a WebSocket connection to server.
`static String`	`LOCATION_HEADER_NAME`
`static int`	`MAX_REDIRECTIONS_DEFAULT`
`static String`	`MAX_REDIRECTIONS_PROPERTY`
`static int`	`MOVED_PERMANENTLY`
`static int`	`MULTIPLE_CHOICES`
`static byte`	`OPCODE_BINARY`
`static byte`	`OPCODE_CLOSE`
`static byte`	`OPCODE_CONTINUATION`
`static byte`	`OPCODE_PING`
`static byte`	`OPCODE_PONG`
`static byte`	`OPCODE_TEXT`
`static String`	`ORIGIN_HEADER_NAME`
`static String`	`PROXY_AUTHENTICATE_HEADER_NAME`
`static int`	`PROXY_AUTHENTICATION_REQUIRED`
`static String`	`PROXY_AUTHORIZATION_HEADER_NAME`
`static String`	`READ_IDLE_TIMEOUT_MS`
`static int`	`SEE_OTHER`
`static String`	`SSL_CONTEXT_PROPERTY`	Deprecated, for removal: This API element is subject to removal in a future version. This will be removed in Tomcat 11.
`static String`	`SSL_PROTOCOLS_PROPERTY`	Deprecated, for removal: This API element is subject to removal in a future version. This will be removed in Tomcat 11.
`static String`	`SSL_TRUSTSTORE_PROPERTY`	Deprecated, for removal: This API element is subject to removal in a future version.
`static String`	`SSL_TRUSTSTORE_PWD_DEFAULT`	Deprecated, for removal: This API element is subject to removal in a future version.
`static String`	`SSL_TRUSTSTORE_PWD_PROPERTY`	Deprecated, for removal: This API element is subject to removal in a future version.
`static int`	`TEMPORARY_REDIRECT`
`static int`	`UNAUTHORIZED`
`static String`	`UPGRADE_HEADER_NAME`
`static String`	`UPGRADE_HEADER_VALUE`
`static int`	`USE_PROXY`
`static String`	`WRITE_IDLE_TIMEOUT_MS`
`static String`	`WS_AUTHENTICATION_PASSWORD`
`static String`	`WS_AUTHENTICATION_PROXY_PASSWORD`
`static String`	`WS_AUTHENTICATION_PROXY_REALM`
`static String`	`WS_AUTHENTICATION_PROXY_USER_NAME`
`static String`	`WS_AUTHENTICATION_REALM`
`static String`	`WS_AUTHENTICATION_USER_NAME`
`static String`	`WS_EXTENSIONS_HEADER_NAME`
`static String`	`WS_KEY_HEADER_NAME`
`static String`	`WS_PROTOCOL_HEADER_NAME`
`static String`	`WS_VERSION_HEADER_NAME`
`static String`	`WS_VERSION_HEADER_VALUE`
`static String`	`WWW_AUTHENTICATE_HEADER_NAME`

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - OPCODE_CONTINUATION
```
public static final byte OPCODE_CONTINUATION
```
    See Also:
    
    Constant Field Values
  - OPCODE_TEXT
```
public static final byte OPCODE_TEXT
```
    See Also:
    
    Constant Field Values
  - OPCODE_BINARY
```
public static final byte OPCODE_BINARY
```
    See Also:
    
    Constant Field Values
  - OPCODE_CLOSE
```
public static final byte OPCODE_CLOSE
```
    See Also:
    
    Constant Field Values
  - OPCODE_PING
```
public static final byte OPCODE_PING
```
    See Also:
    
    Constant Field Values
  - OPCODE_PONG
```
public static final byte OPCODE_PONG
```
    See Also:
    
    Constant Field Values
  - SSL_PROTOCOLS_PROPERTY
```
@Deprecated(forRemoval=true,
            since="Tomcat 10.1.x")
public static final String SSL_PROTOCOLS_PROPERTY
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    This will be removed in Tomcat 11. Use ClientEndpointConfig.getSSLContext()
    
    Property name to set to configure the value that is passed to SSLEngine.setEnabledProtocols(String[]). The value should be a comma separated string.
    
    See Also:
    
    Constant Field Values
  - SSL_TRUSTSTORE_PROPERTY
```
@Deprecated(forRemoval=true,
            since="Tomcat 10.1.x")
public static final String SSL_TRUSTSTORE_PROPERTY
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    
    See Also:
    
    Constant Field Values
  - SSL_TRUSTSTORE_PWD_PROPERTY
```
@Deprecated(forRemoval=true,
            since="Tomcat 10.1.x")
public static final String SSL_TRUSTSTORE_PWD_PROPERTY
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    
    See Also:
    
    Constant Field Values
  - SSL_TRUSTSTORE_PWD_DEFAULT
```
@Deprecated(forRemoval=true,
            since="Tomcat 10.1.x")
public static final String SSL_TRUSTSTORE_PWD_DEFAULT
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    
    See Also:
    
    Constant Field Values
  - SSL_CONTEXT_PROPERTY
```
@Deprecated(forRemoval=true,
            since="Tomcat 10.1.x")
public static final String SSL_CONTEXT_PROPERTY
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    This will be removed in Tomcat 11. Use ClientEndpointConfig.getSSLContext()
    
    Property name to set to configure used SSLContext. The value should be an instance of SSLContext. If this property is present, the SSL_TRUSTSTORE* properties are ignored.
    
    See Also:
    
    Constant Field Values
  - IO_TIMEOUT_MS_PROPERTY
```
public static final String IO_TIMEOUT_MS_PROPERTY
```
    Property name to set to configure the timeout (in milliseconds) when establishing a WebSocket connection to server. The default is IO_TIMEOUT_MS_DEFAULT.
    
    See Also:
    
    Constant Field Values
  - IO_TIMEOUT_MS_DEFAULT
```
public static final long IO_TIMEOUT_MS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MAX_REDIRECTIONS_PROPERTY
```
public static final String MAX_REDIRECTIONS_PROPERTY
```
    See Also:
    
    Constant Field Values
  - MAX_REDIRECTIONS_DEFAULT
```
public static final int MAX_REDIRECTIONS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - HOST_HEADER_NAME
```
public static final String HOST_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - UPGRADE_HEADER_NAME
```
public static final String UPGRADE_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - UPGRADE_HEADER_VALUE
```
public static final String UPGRADE_HEADER_VALUE
```
    See Also:
    
    Constant Field Values
  - ORIGIN_HEADER_NAME
```
public static final String ORIGIN_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - CONNECTION_HEADER_NAME
```
public static final String CONNECTION_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - CONNECTION_HEADER_VALUE
```
public static final String CONNECTION_HEADER_VALUE
```
    See Also:
    
    Constant Field Values
  - LOCATION_HEADER_NAME
```
public static final String LOCATION_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - AUTHORIZATION_HEADER_NAME
```
public static final String AUTHORIZATION_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - WWW_AUTHENTICATE_HEADER_NAME
```
public static final String WWW_AUTHENTICATE_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - PROXY_AUTHORIZATION_HEADER_NAME
```
public static final String PROXY_AUTHORIZATION_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - PROXY_AUTHENTICATE_HEADER_NAME
```
public static final String PROXY_AUTHENTICATE_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - WS_VERSION_HEADER_NAME
```
public static final String WS_VERSION_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - WS_VERSION_HEADER_VALUE
```
public static final String WS_VERSION_HEADER_VALUE
```
    See Also:
    
    Constant Field Values
  - WS_KEY_HEADER_NAME
```
public static final String WS_KEY_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - WS_PROTOCOL_HEADER_NAME
```
public static final String WS_PROTOCOL_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - WS_EXTENSIONS_HEADER_NAME
```
public static final String WS_EXTENSIONS_HEADER_NAME
```
    See Also:
    
    Constant Field Values
  - MULTIPLE_CHOICES
```
public static final int MULTIPLE_CHOICES
```
    See Also:
    
    Constant Field Values
  - MOVED_PERMANENTLY
```
public static final int MOVED_PERMANENTLY
```
    See Also:
    
    Constant Field Values
  - FOUND
```
public static final int FOUND
```
    See Also:
    
    Constant Field Values
  - SEE_OTHER
```
public static final int SEE_OTHER
```
    See Also:
    
    Constant Field Values
  - USE_PROXY
```
public static final int USE_PROXY
```
    See Also:
    
    Constant Field Values
  - TEMPORARY_REDIRECT
```
public static final int TEMPORARY_REDIRECT
```
    See Also:
    
    Constant Field Values
  - UNAUTHORIZED
```
public static final int UNAUTHORIZED
```
    See Also:
    
    Constant Field Values
  - PROXY_AUTHENTICATION_REQUIRED
```
public static final int PROXY_AUTHENTICATION_REQUIRED
```
    See Also:
    
    Constant Field Values
  - BLOCKING_SEND_TIMEOUT_PROPERTY
```
public static final String BLOCKING_SEND_TIMEOUT_PROPERTY
```
    See Also:
    
    Constant Field Values
  - DEFAULT_BLOCKING_SEND_TIMEOUT
```
public static final long DEFAULT_BLOCKING_SEND_TIMEOUT
```
    See Also:
    
    Constant Field Values
  - READ_IDLE_TIMEOUT_MS
```
public static final String READ_IDLE_TIMEOUT_MS
```
    See Also:
    
    Constant Field Values
  - WRITE_IDLE_TIMEOUT_MS
```
public static final String WRITE_IDLE_TIMEOUT_MS
```
    See Also:
    
    Constant Field Values
  - WS_AUTHENTICATION_USER_NAME
```
public static final String WS_AUTHENTICATION_USER_NAME
```
    See Also:
    
    Constant Field Values
  - WS_AUTHENTICATION_PASSWORD
```
public static final String WS_AUTHENTICATION_PASSWORD
```
    See Also:
    
    Constant Field Values
  - WS_AUTHENTICATION_REALM
```
public static final String WS_AUTHENTICATION_REALM
```
    See Also:
    
    Constant Field Values
  - WS_AUTHENTICATION_PROXY_USER_NAME
```
public static final String WS_AUTHENTICATION_PROXY_USER_NAME
```
    See Also:
    
    Constant Field Values
  - WS_AUTHENTICATION_PROXY_PASSWORD
```
public static final String WS_AUTHENTICATION_PROXY_PASSWORD
```
    See Also:
    
    Constant Field Values
  - WS_AUTHENTICATION_PROXY_REALM
```
public static final String WS_AUTHENTICATION_PROXY_REALM
```
    See Also:
    
    Constant Field Values
  - INSTALLED_EXTENSIONS
```
public static final List<Extension> INSTALLED_EXTENSIONS
```

Class Constants

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

OPCODE_CONTINUATION

OPCODE_TEXT

OPCODE_BINARY

OPCODE_CLOSE

OPCODE_PING

OPCODE_PONG

SSL_PROTOCOLS_PROPERTY

SSL_TRUSTSTORE_PROPERTY

SSL_TRUSTSTORE_PWD_PROPERTY

SSL_TRUSTSTORE_PWD_DEFAULT

SSL_CONTEXT_PROPERTY

IO_TIMEOUT_MS_PROPERTY

IO_TIMEOUT_MS_DEFAULT

MAX_REDIRECTIONS_PROPERTY

MAX_REDIRECTIONS_DEFAULT

HOST_HEADER_NAME

UPGRADE_HEADER_NAME

UPGRADE_HEADER_VALUE

ORIGIN_HEADER_NAME

CONNECTION_HEADER_NAME

CONNECTION_HEADER_VALUE

LOCATION_HEADER_NAME

AUTHORIZATION_HEADER_NAME

WWW_AUTHENTICATE_HEADER_NAME

PROXY_AUTHORIZATION_HEADER_NAME

PROXY_AUTHENTICATE_HEADER_NAME

WS_VERSION_HEADER_NAME

WS_VERSION_HEADER_VALUE

WS_KEY_HEADER_NAME

WS_PROTOCOL_HEADER_NAME

WS_EXTENSIONS_HEADER_NAME

MULTIPLE_CHOICES

MOVED_PERMANENTLY

FOUND

SEE_OTHER

USE_PROXY

TEMPORARY_REDIRECT

UNAUTHORIZED

PROXY_AUTHENTICATION_REQUIRED

BLOCKING_SEND_TIMEOUT_PROPERTY

DEFAULT_BLOCKING_SEND_TIMEOUT

READ_IDLE_TIMEOUT_MS

WRITE_IDLE_TIMEOUT_MS

WS_AUTHENTICATION_USER_NAME

WS_AUTHENTICATION_PASSWORD

WS_AUTHENTICATION_REALM

WS_AUTHENTICATION_PROXY_USER_NAME

WS_AUTHENTICATION_PROXY_PASSWORD

WS_AUTHENTICATION_PROXY_REALM

INSTALLED_EXTENSIONS