Constants (Apache Tomcat 9.0.58 API Documentation)

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

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

Field Summary

Fields
Modifier and Type	Field and 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`	`READ_IDLE_TIMEOUT_MS`
`static int`	`SEE_OTHER`
`static String`	`SSL_CONTEXT_PROPERTY` Property name to set to configure used SSLContext.
`static String`	`SSL_PROTOCOLS_PROPERTY` Property name to set to configure the value that is passed to `SSLEngine.setEnabledProtocols(String[])`.
`static String`	`SSL_TRUSTSTORE_PROPERTY`
`static String`	`SSL_TRUSTSTORE_PWD_DEFAULT`
`static String`	`SSL_TRUSTSTORE_PWD_PROPERTY`
`static boolean`	`STRICT_SPEC_COMPLIANCE`
`static int`	`TEMPORARY_REDIRECT`
`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_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
```
public static final String SSL_PROTOCOLS_PROPERTY
```
    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
```
public static final String SSL_TRUSTSTORE_PROPERTY
```
    See Also:
    
    Constant Field Values
  - SSL_TRUSTSTORE_PWD_PROPERTY
```
public static final String SSL_TRUSTSTORE_PWD_PROPERTY
```
    See Also:
    
    Constant Field Values
  - SSL_TRUSTSTORE_PWD_DEFAULT
```
public static final String SSL_TRUSTSTORE_PWD_DEFAULT
```
    See Also:
    
    Constant Field Values
  - SSL_CONTEXT_PROPERTY
```
public static final String SSL_CONTEXT_PROPERTY
```
    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
  - 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
  - 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
  - STRICT_SPEC_COMPLIANCE
```
public static final boolean STRICT_SPEC_COMPLIANCE
```
  - 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

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

BLOCKING_SEND_TIMEOUT_PROPERTY

DEFAULT_BLOCKING_SEND_TIMEOUT

READ_IDLE_TIMEOUT_MS

WRITE_IDLE_TIMEOUT_MS

WS_AUTHENTICATION_USER_NAME

WS_AUTHENTICATION_PASSWORD

STRICT_SPEC_COMPLIANCE

INSTALLED_EXTENSIONS