H2 Database Engine 2.3.232 · org.h2.table.TableLinkConnection

Modifier and Type	Field and Description
private boolean	autocommit
private Connection	conn The database connection.
private final String	driver The connection information.
private final HashMap<TableLinkConnection, TableLinkConnection>	map The map where the link is kept.
private final String	password The connection information.
private final String	url The connection information.
private int	useCounter How many times the connection is used.
private final String	user The connection information.

Access	Constructor and Description
private	TableLinkConnection(HashMap<TableLinkConnection, TableLinkConnection> map, String driver, String url, String user, String password)

Method Summary

Modifier and Type	Method and Description
pack-priv void	close(boolean if the connection needs to be closed even if it is still used elsewhere (for example, because the connection is broken) force) Closes the connection if this is the last link to it.
public boolean	equals(Object the reference object with which to compare. o) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public boolean	Returns: true if autocommit is on getAutocommit() The autocommit mode
pack-priv Connection	Returns: the connection getConnection() Get the connection.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public static TableLinkConnection	Returns: a connection open(HashMap<TableLinkConnection, TableLinkConnection> the map where the connection should be stored (if shared connections are enabled). map, String the JDBC driver class name driver, String the database URL url, String the user name user, String the password password, boolean if connections should be shared shareLinkedConnections) Open a new connection.
private void	open()
public void	setAutoCommit(boolean to set mode) Specify if the autocommit mode is activated or not

Inherited from java.lang.Object:: clone finalize getClass notify notifyAll toString wait wait wait

autocommit	back to summary
private boolean autocommit

conn	back to summary
private Connection conn The database connection.

driver	back to summary
private final String driver The connection information.

map	back to summary
private final HashMap<TableLinkConnection, TableLinkConnection> map The map where the link is kept.

password	back to summary
private final String password The connection information.

url	back to summary
private final String url The connection information.

useCounter	back to summary
private int useCounter How many times the connection is used.

user	back to summary
private final String user The connection information.

TableLinkConnection	back to summary
private TableLinkConnection(HashMap<TableLinkConnection, TableLinkConnection> map, String driver, String url, String user, String password)

Method Detail

close	back to summary
pack-priv void close(boolean force) Closes the connection if this is the last link to it. Parameters force:boolean if the connection needs to be closed even if it is still used elsewhere (for example, because the connection is broken)

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pack-priv void close(boolean force)

Closes the connection if this is the last link to it.

Parameters

force:boolean: if the connection needs to be closed even if it is still used elsewhere (for example, because the connection is broken)

equals back to summary

equals	back to summary
public boolean equals(Object o) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters o:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

o:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

getAutocommit	back to summary
public boolean getAutocommit() The autocommit mode Returns:boolean true if autocommit is on

getAutocommit

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public boolean getAutocommit()

The autocommit mode

Returns:boolean: true if autocommit is on

getConnection	back to summary
pack-priv Connection getConnection() Get the connection. This method and methods on the statement must be synchronized on this object. Returns:Connection the connection

getConnection

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pack-priv Connection getConnection()

Get the connection. This method and methods on the statement must be synchronized on this object.

Returns:Connection: the connection

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object

Annotations

@Override

open	back to summary
public static TableLinkConnection open(HashMap<TableLinkConnection, TableLinkConnection> map, String driver, String url, String user, String password, boolean shareLinkedConnections) Open a new connection. Parameters map:HashMap<TableLinkConnection, TableLinkConnection> the map where the connection should be stored (if shared connections are enabled). driver:String the JDBC driver class name url:String the database URL user:String the user name password:String the password shareLinkedConnections:boolean if connections should be shared Returns:TableLinkConnection a connection

open

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public static TableLinkConnection open(HashMap<TableLinkConnection, TableLinkConnection> map, String driver, String url, String user, String password, boolean shareLinkedConnections)

Open a new connection.

Parameters

map:HashMap<TableLinkConnection, TableLinkConnection>: the map where the connection should be stored (if shared connections are enabled).
driver:String: the JDBC driver class name
url:String: the database URL
user:String: the user name
password:String: the password
shareLinkedConnections:boolean: if connections should be shared

Returns:TableLinkConnection

a connection

open	back to summary
private void open()

setAutoCommit	back to summary
public void setAutoCommit(boolean mode) Specify if the autocommit mode is activated or not Parameters mode:boolean to set

setAutoCommit

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public void setAutoCommit(boolean mode)

Specify if the autocommit mode is activated or not

Parameters

mode:boolean: to set

public Class TableLinkConnection

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail