org.objectweb.cjdbc.sql
Class DropRequest

java.lang.Object
  extended byorg.objectweb.cjdbc.sql.AbstractRequest
      extended byorg.objectweb.cjdbc.sql.AbstractWriteRequest
          extended byorg.objectweb.cjdbc.sql.DropRequest
All Implemented Interfaces:
java.io.Serializable

public class DropRequest
extends AbstractWriteRequest
implements java.io.Serializable

An DropRequest is an SQL request with the following syntax:

 DROP TABLE table-name
 

Version:
1.0
Author:
Julie Marguerite, Mathieu Peltier
See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.objectweb.cjdbc.sql.AbstractWriteRequest
blocking, columns, tableName
 
Fields inherited from class org.objectweb.cjdbc.sql.AbstractRequest
cacheable, escapeProcessing, id, isAutoCommit, isParsed, isReadOnly, login, maxRows, sqlQuery, sqlSkeleton, timeout, transactionId
 
Constructor Summary
DropRequest(java.lang.String sqlQuery, boolean escapeProcessing, int timeout)
          Creates a new DropRequest instance.
DropRequest(java.lang.String sqlQuery, boolean escapeProcessing, int timeout, DatabaseSchema schema, int granularity, boolean isCaseSensitive)
          Creates a new DropRequest instance.
 
Method Summary
 void cloneParsing(AbstractRequest request)
          Clones the parsing of a request.
 void debug()
          Displays some debugging information about this request.
 boolean isCreate()
          Returns true if this request in a CREATE statement.
 boolean isDelete()
          Returns true if this request in a DELETE statement.
 boolean isDrop()
          Returns true if this request in a DROP statement.
 boolean isInsert()
          Returns true if this request in an INSERT statement.
 boolean isUpdate()
          Returns true if this request in an UPDATE statement.
 void parse(DatabaseSchema schema, int granularity, boolean isCaseSensitive)
          Parses the SQL request and extract the selected columns and tables given the DatabaseSchema of the database targeted by this request.
 
Methods inherited from class org.objectweb.cjdbc.sql.AbstractWriteRequest
cloneTableNameAndColumns, getColumns, getTableName, isReadRequest, isUnknownRequest, isWriteRequest, mightBlock, setBlocking
 
Methods inherited from class org.objectweb.cjdbc.sql.AbstractRequest
equals, getCacheAbility, getEscapeProcessing, getId, getLogin, getMaxRows, getSQL, getSqlSkeleton, getTimeout, getTransactionId, isAutoCommit, isParsed, isReadOnly, setCacheAbility, setId, setIsAutoCommit, setIsReadOnly, setLogin, setMaxRows, setSQL, setSqlSkeleton, setTimeout, setTransactionId, trimCarriageReturn
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DropRequest

public DropRequest(java.lang.String sqlQuery,
                   boolean escapeProcessing,
                   int timeout,
                   DatabaseSchema schema,
                   int granularity,
                   boolean isCaseSensitive)
            throws java.sql.SQLException
Creates a new DropRequest instance. The caller must give an SQL request, without any leading or trailing spaces and beginning with 'drop table ' (it will not be checked).

If the syntax is incorrect an exception is thrown.

Parameters:
sqlQuery - a String value
escapeProcessing - should the driver to escape processing before sending to the database ?
timeout - an int value
schema - a DatabaseSchema value
granularity - parsing granularity as defined in ParsingGranularities
isCaseSensitive - true if parsing is case sensitive
Throws:
java.sql.SQLException - if an error occurs

DropRequest

public DropRequest(java.lang.String sqlQuery,
                   boolean escapeProcessing,
                   int timeout)
Creates a new DropRequest instance. The caller must give an SQL request, without any leading or trailing spaces and beginning with 'drop table ' (it will not be checked).

The request is not parsed but it can be done later by a call to parse(DatabaseSchema, int, boolean).

Parameters:
sqlQuery - the SQL query
escapeProcessing - should the driver to escape processing before sending to the database ?
timeout - an int value
See Also:
parse(org.objectweb.cjdbc.sql.schema.DatabaseSchema, int, boolean)
Method Detail

parse

public void parse(DatabaseSchema schema,
                  int granularity,
                  boolean isCaseSensitive)
           throws java.sql.SQLException
Description copied from class: AbstractRequest
Parses the SQL request and extract the selected columns and tables given the DatabaseSchema of the database targeted by this request.

An exception is thrown when the parsing fails. Warning, this method does not check the validity of the request. In particular, invalid request could be parsed without throwing an exception. However, valid SQL request should never throw an exception.

Specified by:
parse in class AbstractRequest
Parameters:
schema - a DatabaseSchema value
granularity - parsing granularity as defined in ParsingGranularities
isCaseSensitive - true if parsing must be case sensitive
Throws:
java.sql.SQLException - if the parsing fails
See Also:
AbstractRequest.parse(org.objectweb.cjdbc.sql.schema.DatabaseSchema, int, boolean)

cloneParsing

public void cloneParsing(AbstractRequest request)
Description copied from class: AbstractRequest
Clones the parsing of a request.

Specified by:
cloneParsing in class AbstractRequest
Parameters:
request - the parsed request to clone
See Also:
AbstractRequest.cloneParsing(AbstractRequest)

isInsert

public boolean isInsert()
Description copied from class: AbstractWriteRequest
Returns true if this request in an INSERT statement.

Specified by:
isInsert in class AbstractWriteRequest
Returns:
false
See Also:
AbstractWriteRequest.isInsert()

isUpdate

public boolean isUpdate()
Description copied from class: AbstractWriteRequest
Returns true if this request in an UPDATE statement.

Specified by:
isUpdate in class AbstractWriteRequest
Returns:
false
See Also:
AbstractWriteRequest.isUpdate()

isDelete

public boolean isDelete()
Description copied from class: AbstractWriteRequest
Returns true if this request in a DELETE statement.

Specified by:
isDelete in class AbstractWriteRequest
Returns:
false
See Also:
AbstractWriteRequest.isDelete()

isCreate

public boolean isCreate()
Description copied from class: AbstractWriteRequest
Returns true if this request in a CREATE statement.

Specified by:
isCreate in class AbstractWriteRequest
Returns:
false
See Also:
AbstractWriteRequest.isCreate()

isDrop

public boolean isDrop()
Description copied from class: AbstractWriteRequest
Returns true if this request in a DROP statement.

Specified by:
isDrop in class AbstractWriteRequest
Returns:
true
See Also:
AbstractWriteRequest.isDrop()

debug

public void debug()
Displays some debugging information about this request.

Overrides:
debug in class AbstractRequest


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