com.sun.jdo.spi.persistence.support.sqlstore.sql.generator

Class UpdateStatement

java.lang.Object

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.Statement

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.UpdateStatement

All Implemented Interfaces:

Cloneable

public class UpdateStatement
extends Statement
implements Cloneable

This class is used to generate update/insert/delete statements.

Field Summary

Fields

Modifier and Type	Field and Description
int	minAffectedRows
static String	UPDATE_VERSION_COL_PROPERTY Name of the USE_BATCH property.

Fields inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.Statement

columns, inputDesc, messages, OP_BINOP_MASK, OP_FUNC_MASK, OP_INFIX_MASK, OP_IRREGULAR_MASK, OP_ORDERBY_MASK, OP_OTHER_MASK, OP_PARAM_MASK, OP_PAREN_MASK, OP_PCOUNT_MASK, OP_POSTFIX_MASK, OP_PREFIX_MASK, OP_WHERE_MASK, secondaryTableStatements, statementText, tableList, vendorType

Constructor Summary

Constructors

Constructor and Description
UpdateStatement(DBVendorType vendorType, UpdateQueryPlan plan, boolean batch)

Method Summary

Modifier and Type	Method and Description
void	addColumn(org.netbeans.modules.dbschema.ColumnElement columnElement, Object value)
protected void	addConstraint(org.netbeans.modules.dbschema.ColumnElement columnElement, LocalFieldDesc lf, Object value) Batch helper method.
void	addForeignConstraints(int action, ForeignFieldDesc f, SQLStateManager sm)
void	addLocalConstraints(int action, ForeignFieldDesc f, SQLStateManager sm)
void	addVersionColumn(org.netbeans.modules.dbschema.ColumnElement versionColumn)
void	bindInputColumns(DBStatement s, UpdateObjectDescImpl updateDesc)
boolean	exceedsBatchThreshold(Transaction tran)
protected void	generateStatementText() Generates the SQL text for the query described by this object.
DBStatement	getDBStatement(Transaction tran, Connection conn) Returns the cached db statement for the specified connection.
String	getFormattedSQLText(UpdateObjectDescImpl updateDesc) Gets formatted sql text corrsponding to this statement object.
QueryPlan	getQueryPlan() Get QueryPlan for this statement
boolean	isConstraintAdded()
void	markConstraintAdded()
protected void	processConstraintValue(ConstraintValue node, StringBuffer result) Redefines processConstraintValue in order to skip the creation of an InputValue in the case of batch.
DBStatement	removeDBStatement(Transaction tran) Removes the db statement for the specified connection from the cache and closes this statement.

Methods inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.Statement

addColumnRef, addConstraint, addQueryTable, addSecondaryTableStatement, appendQuotedText, appendTableText, bindInputValues, clone, findQueryTable, formatSqlText, generateColumnText, generateInputValueForConstraintValueNode, getAction, getColumnRef, getColumnRefs, getFormattedSQLText, getOriginalPlan, getQueryTables, getSecondaryTableStatements, getText, getVendorType, getWhereText, infixOperator, operationFormat, postfixOperator, prefixOperator, processConstraintParamIndex, processConstraints, processIrregularOperation, processRootConstraint, setAction

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

minAffectedRows

public int minAffectedRows

UPDATE_VERSION_COL_PROPERTY

public static final String UPDATE_VERSION_COL_PROPERTY

Name of the USE_BATCH property.

See Also:

Constant Field Values

Constructor Detail

UpdateStatement

public UpdateStatement(DBVendorType vendorType,
                       UpdateQueryPlan plan,
                       boolean batch)

Method Detail

addColumn

public void addColumn(org.netbeans.modules.dbschema.ColumnElement columnElement,
                      Object value)

addConstraint

protected void addConstraint(org.netbeans.modules.dbschema.ColumnElement columnElement,
                             LocalFieldDesc lf,
                             Object value)

Batch helper method. Adds the columnElement to the list of ColumnRefs for the where clause and then calls addConstraint.

isConstraintAdded

public boolean isConstraintAdded()

markConstraintAdded

public void markConstraintAdded()

getQueryPlan

public QueryPlan getQueryPlan()

Description copied from class: Statement

Get QueryPlan for this statement

Specified by:

getQueryPlan in class Statement

Returns:

QueryPlan for this statement

generateStatementText

protected void generateStatementText()

Description copied from class: Statement

Generates the SQL text for the query described by this object.

Specified by:

generateStatementText in class Statement

addLocalConstraints

public void addLocalConstraints(int action,
                                ForeignFieldDesc f,
                                SQLStateManager sm)

addForeignConstraints

public void addForeignConstraints(int action,
                                  ForeignFieldDesc f,
                                  SQLStateManager sm)

processConstraintValue

protected void processConstraintValue(ConstraintValue node,
                                      StringBuffer result)

Redefines processConstraintValue in order to skip the creation of an InputValue in the case of batch.

Overrides:

processConstraintValue in class Statement

getDBStatement

public DBStatement getDBStatement(Transaction tran,
                                  Connection conn)
                           throws SQLException

Returns the cached db statement for the specified connection. If there is not any statement for this connection in the cache, then a new statement is created.

Parameters:

tran - the transaction

conn - the connection

Returns:

the statement

Throws:

SQLException

exceedsBatchThreshold

public boolean exceedsBatchThreshold(Transaction tran)

removeDBStatement

public DBStatement removeDBStatement(Transaction tran)

Removes the db statement for the specified connection from the cache and closes this statement.

Parameters:

tran - the transaction

bindInputColumns

public void bindInputColumns(DBStatement s,
                             UpdateObjectDescImpl updateDesc)
                      throws SQLException

Throws:

SQLException

getFormattedSQLText

public String getFormattedSQLText(UpdateObjectDescImpl updateDesc)

Gets formatted sql text corrsponding to this statement object. The text also contains values for input to the statement.

Parameters:

updateDesc - the updateDesc.

Returns:

formatted sql text corrsponding to this statement object.

addVersionColumn

public void addVersionColumn(org.netbeans.modules.dbschema.ColumnElement versionColumn)