Top Inners Fields Constructors Methods
org.apache.tomcat.jdbc.pool

public Class StatementFacade

extends AbstractCreateStatementInterceptor
Class Inheritance
Imports
java.lang.reflect.Constructor, .InvocationHandler, .InvocationTargetException, .Method, .Proxy, java.sql.CallableStatement, .PreparedStatement, .SQLException, .Statement, org.apache.juli.logging.Log, .LogFactory, org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor

Nested and Inner Type Summary

Modifier and TypeClass and Description
protected class
StatementFacade.StatementProxy

Class to measure query execute time.

Field Summary

Modifier and TypeField and Description
private static final Log
Inherited from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor:
constructorsCREATE_STATEMENTCREATE_STATEMENT_IDXEXECUTEEXECUTE_BATCHEXECUTE_QUERYEXECUTE_TYPESEXECUTE_UPDATEPREPARE_CALLPREPARE_CALL_IDXPREPARE_STATEMENTPREPARE_STATEMENT_IDXSTATEMENT_TYPE_COUNTSTATEMENT_TYPES

Constructor Summary

AccessConstructor and Description
protected

Method Summary

Modifier and TypeMethod and Description
public void
public Object
createStatement(Object
the actual proxy object
proxy
,
Method
the method that was called. It will be one of the methods defined in STATEMENT_TYPES
method
,
Object[]
the arguments to the method
args
,
Object
the statement that the underlying connection created
statement
,
long
Elapsed time
time
)

Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

Creates a statement interceptor to monitor query response times

Inherited from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor:
getConstructorinvokeisExecuteisStatementprocessreset

Field Detail

loggerback to summary
private static final Log logger

Constructor Detail

StatementFacadeback to summary
protected StatementFacade(JdbcInterceptor interceptor)

Method Detail

closeInvokedback to summary
public void closeInvoked()

Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.closeInvoked.

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.closeInvoked.

Method invoked when the operation java.sql.Connection#close() is invoked.

Annotations
@Override
createStatementback to summary
public Object createStatement(Object proxy, Method method, Object[] args, Object statement, long time)

Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

Creates a statement interceptor to monitor query response times

Parameters
proxy:Object

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

the actual proxy object

method:Method

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

the method that was called. It will be one of the methods defined in STATEMENT_TYPES

args:Object[]

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

the arguments to the method

statement:Object

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

the statement that the underlying connection created

time:long

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

Elapsed time

Returns:Object

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.createStatement.

a java.sql.Statement object

Annotations
@Override
org.apache.tomcat.jdbc.pool back to summary

protected Class StatementFacade.StatementProxy

extends Object
implements InvocationHandler
Class Inheritance
All Implemented Interfaces
java.lang.reflect.InvocationHandler

Class to measure query execute time.

Field Summary

Modifier and TypeField and Description
protected boolean
protected Object
protected final String

Constructor Summary

AccessConstructor and Description
public
StatementProxy(Object parent, String query)

Method Summary

Modifier and TypeMethod and Description
public boolean
equals(Object
the reference object with which to compare.
obj
)

Overrides java.lang.Object.equals.

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

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

public Object
invoke(Object
the proxy instance that the method was invoked on
proxy
,
Method
the Method instance corresponding to the interface method invoked on the proxy instance. The declaring class of the Method object will be the interface that the method was declared in, which may be a superinterface of the proxy interface that the proxy class inherits the method through.
method
,
Object[]
an array of objects containing the values of the arguments passed in the method invocation on the proxy instance, or null if interface method takes no arguments. Arguments of primitive types are wrapped in instances of the appropriate primitive wrapper class, such as java.lang.Integer or java.lang.Boolean.
args
)

Implements java.lang.reflect.InvocationHandler.invoke.

Processes a method invocation on a proxy instance and returns the result.

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAllwaitwaitwait

Field Detail

closedback to summary
protected boolean closed
delegateback to summary
protected Object delegate
queryback to summary
protected final String query

Constructor Detail

StatementProxyback to summary
public StatementProxy(Object parent, String query)

Method Detail

equalsback to summary
public boolean equals(Object obj)

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
obj: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
hashCodeback 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
invokeback to summary
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable

Implements java.lang.reflect.InvocationHandler.invoke.

Doc from java.lang.reflect.InvocationHandler.invoke.

Processes a method invocation on a proxy instance and returns the result. This method will be invoked on an invocation handler when a method is invoked on a proxy instance that it is associated with.

Parameters
proxy:Object

the proxy instance that the method was invoked on

method:Method

the Method instance corresponding to the interface method invoked on the proxy instance. The declaring class of the Method object will be the interface that the method was declared in, which may be a superinterface of the proxy interface that the proxy class inherits the method through.

args:Object[]

an array of objects containing the values of the arguments passed in the method invocation on the proxy instance, or null if interface method takes no arguments. Arguments of primitive types are wrapped in instances of the appropriate primitive wrapper class, such as java.lang.Integer or java.lang.Boolean.

Returns:Object

the value to return from the method invocation on the proxy instance. If the declared return type of the interface method is a primitive type, then the value returned by this method must be an instance of the corresponding primitive wrapper class; otherwise, it must be a type assignable to the declared return type. If the value returned by this method is null and the interface method's return type is primitive, then a NullPointerException will be thrown by the method invocation on the proxy instance. If the value returned by this method is otherwise not compatible with the interface method's declared return type as described above, a ClassCastException will be thrown by the method invocation on the proxy instance.

Annotations
@Override
Exceptions
Throwable:
the exception to throw from the method invocation on the proxy instance. The exception's type must be assignable either to any of the exception types declared in the throws clause of the interface method or to the unchecked exception types java.lang.RuntimeException or java.lang.Error. If a checked exception is thrown by this method that is not assignable to any of the exception types declared in the throws clause of the interface method, then an UndeclaredThrowableException containing the exception that was thrown by this method will be thrown by the method invocation on the proxy instance.
toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

Returns:String

a string representation of the object

Annotations
@Override