OpenOptions (Vert.x Stack - Docs 4.1.8 API)

java.lang.Object
- io.vertx.core.file.OpenOptions

```
public class OpenOptions
extends Object
```
Describes how an AsyncFile should be opened.

Author:

Tim Fox

Field Summary

Fields
Modifier and Type	Field and Description
`static boolean`	`DEFAULT_APPEND` Whether the file should be opened in append mode by default = false.
`static boolean`	`DEFAULT_CREATE`
`static boolean`	`DEFAULT_CREATENEW`
`static boolean`	`DEFAULT_DELETEONCLOSE`
`static boolean`	`DEFAULT_DSYNC`
`static String`	`DEFAULT_PERMS`
`static boolean`	`DEFAULT_READ`
`static boolean`	`DEFAULT_SPARSE`
`static boolean`	`DEFAULT_SYNC`
`static boolean`	`DEFAULT_TRUNCATEEXISTING`
`static boolean`	`DEFAULT_WRITE`

Constructor Summary

Constructors
Constructor and Description
`OpenOptions()` Default constructor
`OpenOptions(JsonObject json)` Constructor to create options from JSON
`OpenOptions(OpenOptions other)` Copy constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`getPerms()` Get the permissions string to be used if creating a file
`boolean`	`isAppend()`
`boolean`	`isCreate()` Should the file be created if it does not already exist?
`boolean`	`isCreateNew()` Should the file be created if and the open fail if it already exists?
`boolean`	`isDeleteOnClose()` Should the file be deleted when it's closed, or the JVM is shutdown.
`boolean`	`isDsync()` If true then every write to the file's content will be written synchronously to the underlying hardware.
`boolean`	`isRead()` Is the file to opened for reading?
`boolean`	`isSparse()` Set whether a hint should be provided that the file to created is sparse
`boolean`	`isSync()` If true then every write to the file's content and metadata will be written synchronously to the underlying hardware.
`boolean`	`isTruncateExisting()` If the file exists and is opened for writing should the file be truncated to zero length on open?
`boolean`	`isWrite()` Is the file to opened for writing?
`OpenOptions`	`setAppend(boolean append)` Whether the file should be opened in append mode.
`OpenOptions`	`setCreate(boolean create)` Set whether the file should be created if it does not already exist.
`OpenOptions`	`setCreateNew(boolean createNew)` Set whether the file should be created and fail if it does exist already.
`OpenOptions`	`setDeleteOnClose(boolean deleteOnClose)` Set whether the file should be deleted when it's closed, or the JVM is shutdown.
`OpenOptions`	`setDsync(boolean dsync)` Set whether every write to the file's content will be written synchronously to the underlying hardware.
`OpenOptions`	`setPerms(String perms)` Set the permissions string
`OpenOptions`	`setRead(boolean read)` Set whether the file is to be opened for reading
`OpenOptions`	`setSparse(boolean sparse)` Set whether a hint should be provided that the file to created is sparse
`OpenOptions`	`setSync(boolean sync)` Set whether every write to the file's content and meta-data will be written synchronously to the underlying hardware.
`OpenOptions`	`setTruncateExisting(boolean truncateExisting)` Set whether the file should be truncated to zero length on opening if it exists and is opened for write
`OpenOptions`	`setWrite(boolean write)` Set whether the file is to be opened for writing

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

- Field Detail
  - DEFAULT_PERMS
```
public static final String DEFAULT_PERMS
```
  - DEFAULT_READ
```
public static final boolean DEFAULT_READ
```
    See Also:
    
    Constant Field Values
  - DEFAULT_WRITE
```
public static final boolean DEFAULT_WRITE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_CREATE
```
public static final boolean DEFAULT_CREATE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_CREATENEW
```
public static final boolean DEFAULT_CREATENEW
```
    See Also:
    
    Constant Field Values
  - DEFAULT_DSYNC
```
public static final boolean DEFAULT_DSYNC
```
    See Also:
    
    Constant Field Values
  - DEFAULT_SYNC
```
public static final boolean DEFAULT_SYNC
```
    See Also:
    
    Constant Field Values
  - DEFAULT_DELETEONCLOSE
```
public static final boolean DEFAULT_DELETEONCLOSE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_TRUNCATEEXISTING
```
public static final boolean DEFAULT_TRUNCATEEXISTING
```
    See Also:
    
    Constant Field Values
  - DEFAULT_SPARSE
```
public static final boolean DEFAULT_SPARSE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_APPEND
```
public static final boolean DEFAULT_APPEND
```
    Whether the file should be opened in append mode by default = false.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - OpenOptions
```
public OpenOptions()
```
    Default constructor
  - OpenOptions
```
public OpenOptions(OpenOptions other)
```
    Copy constructor
    
    Parameters:
    
    other - the options to copy
  - OpenOptions
```
public OpenOptions(JsonObject json)
```
    Constructor to create options from JSON
    
    Parameters:
    
    json - the JSON
- Method Detail
  - getPerms
```
public String getPerms()
```
    Get the permissions string to be used if creating a file
    
    Returns:
    
    the permissions string
  - setPerms
```
public OpenOptions setPerms(String perms)
```
    Set the permissions string
    
    Parameters:
    
    perms - the permissions string
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isRead
```
public boolean isRead()
```
    Is the file to opened for reading?
    
    Returns:
    
    true if to be opened for reading
  - setRead
```
public OpenOptions setRead(boolean read)
```
    Set whether the file is to be opened for reading
    
    Parameters:
    
    read - true if the file is to be opened for reading
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isWrite
```
public boolean isWrite()
```
    Is the file to opened for writing?
    
    Returns:
    
    true if to be opened for writing
  - setWrite
```
public OpenOptions setWrite(boolean write)
```
    Set whether the file is to be opened for writing
    
    Parameters:
    
    write - true if the file is to be opened for writing
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isCreate
```
public boolean isCreate()
```
    Should the file be created if it does not already exist?
    
    Returns:
    
    true if the file should be created if it does not already exist
  - setCreate
```
public OpenOptions setCreate(boolean create)
```
    Set whether the file should be created if it does not already exist.
    
    Parameters:
    
    create - true if the file should be created if it does not already exist
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isCreateNew
```
public boolean isCreateNew()
```
    Should the file be created if and the open fail if it already exists?
    
    Returns:
    
    true if the file should be created if and the open fail if it already exists.
  - setCreateNew
```
public OpenOptions setCreateNew(boolean createNew)
```
    Set whether the file should be created and fail if it does exist already.
    
    Parameters:
    
    createNew - true if the file should be created or fail if it exists already
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isDeleteOnClose
```
public boolean isDeleteOnClose()
```
    Should the file be deleted when it's closed, or the JVM is shutdown.
    
    Returns:
    
    true if the file should be deleted when it's closed or the JVM shutdown
  - setDeleteOnClose
```
public OpenOptions setDeleteOnClose(boolean deleteOnClose)
```
    Set whether the file should be deleted when it's closed, or the JVM is shutdown.
    
    Parameters:
    
    deleteOnClose - whether the file should be deleted when it's closed, or the JVM is shutdown.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isTruncateExisting
```
public boolean isTruncateExisting()
```
    If the file exists and is opened for writing should the file be truncated to zero length on open?
    
    Returns:
    
    true if the file exists and is opened for writing and the file be truncated to zero length on open
  - setTruncateExisting
```
public OpenOptions setTruncateExisting(boolean truncateExisting)
```
    Set whether the file should be truncated to zero length on opening if it exists and is opened for write
    
    Parameters:
    
    truncateExisting - true if the file should be truncated to zero length on opening if it exists and is opened for write
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isSparse
```
public boolean isSparse()
```
    Set whether a hint should be provided that the file to created is sparse
    
    Returns:
    
    true if a hint should be provided that the file to created is sparse
  - setSparse
```
public OpenOptions setSparse(boolean sparse)
```
    Set whether a hint should be provided that the file to created is sparse
    
    Parameters:
    
    sparse - true if a hint should be provided that the file to created is sparse
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isSync
```
public boolean isSync()
```
    If true then every write to the file's content and metadata will be written synchronously to the underlying hardware.
    
    Returns:
    
    true if sync
  - setSync
```
public OpenOptions setSync(boolean sync)
```
    Set whether every write to the file's content and meta-data will be written synchronously to the underlying hardware.
    
    Parameters:
    
    sync - true if sync
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isDsync
```
public boolean isDsync()
```
    If true then every write to the file's content will be written synchronously to the underlying hardware.
    
    Returns:
    
    true if sync
  - setDsync
```
public OpenOptions setDsync(boolean dsync)
```
    Set whether every write to the file's content will be written synchronously to the underlying hardware.
    
    Parameters:
    
    dsync - true if sync
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isAppend
```
public boolean isAppend()
```
    Returns:
    
    true if the file should be opened in append mode, false otherwise
  - setAppend
```
public OpenOptions setAppend(boolean append)
```
    Whether the file should be opened in append mode. Defaults to false.
    
    Parameters:
    
    append - true to open file in append mode, false otherwise
    
    Returns:
    
    a reference to this, so the API can be used fluently

Class OpenOptions

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_PERMS

DEFAULT_READ

DEFAULT_WRITE

DEFAULT_CREATE

DEFAULT_CREATENEW

DEFAULT_DSYNC

DEFAULT_SYNC

DEFAULT_DELETEONCLOSE

DEFAULT_TRUNCATEEXISTING

DEFAULT_SPARSE

DEFAULT_APPEND

Constructor Detail

OpenOptions

OpenOptions

OpenOptions

Method Detail

getPerms

setPerms

isRead

setRead

isWrite

setWrite

isCreate

setCreate

isCreateNew

setCreateNew

isDeleteOnClose

setDeleteOnClose

isTruncateExisting

setTruncateExisting

isSparse

setSparse

isSync

setSync

isDsync

setDsync

isAppend

setAppend