groovy.sql
Class GroovyResultSetExtension

GroovyResultSetExtension implements additional logic for ResultSet. Due to the version incompatibility between java6 and java5 this methods are moved here from the original GroovyResultSet class. The methods in this class are used by the proxy GroovyResultSetProxy, which will try to invoke methods on this class before invokeing it on ResultSet.

This class is not intended to be used directly. Should be used through GroovyResultSetProxy only!

author:
Jochen Theodorou
see:
GroovyResultSet
see:
GroovyResultSetProxy

Field Summary
 ResultSet resultSet
           
 boolean updated
           
 
Constructor Summary
GroovyResultSetExtension(ResultSet set)
            Creats a GroovyResultSet implementation-
 
Method Summary
void add(Map values)
           Adds a new row to the result set
void eachRow(Closure closure)
           Call the closure once for each row in the result set.
Object getAt(int index)
           Supports integer based subscript operators for accessing at numbered columns starting at zero.
Object getProperty(String columnName)
           Gets the value of the designated column in the current row of as an Object.
ResultSet getResultSet()
           Gets the current result set.
Object invokeMethod(String name, Object args)
          
boolean next()
           Moves the cursor down one row from its current position.
int normalizeIndex(int index)
           Takes a zero based index and convert it into an SQL based 1 based index.
boolean previous()
           Moves the cursor to the previous row in this getResultSet() object.
void putAt(int index, Object newValue)
           Supports integer based subscript operators for updating the values of numbered columns starting at zero.
void setProperty(String columnName, Object newValue)
           Updates the designated column with an Object value.
String toString()
          
 

Constructor Detail

GroovyResultSetExtension

public GroovyResultSetExtension(ResultSet set)
Creats a GroovyResultSet implementation-
param:
set the result set


Method Detail

add

public void add(Map values)
Adds a new row to the result set
param:
values a map containing the mappings for column names and values
throws:
java.sql.SQLException if something goes wrong
see:
ResultSet#insertRow()
see:
ResultSet#updateObject(java.lang.String, java.lang.Object)
see:
ResultSet#moveToInsertRow()


eachRow

public void eachRow(Closure closure)
Call the closure once for each row in the result set.
param:
closure the closure to perform on each row
throws:
SQLException if something goes wrong


getAt

public Object getAt(int index)
Supports integer based subscript operators for accessing at numbered columns starting at zero. Negative indices are supported, they will count from the last column backwards.
param:
index is the number of the column to look at starting at 1
return:
the returned column value
throws:
java.sql.SQLException if something goes wrong
see:
ResultSet#getObject(int)


getProperty

public Object getProperty(String columnName)
Gets the value of the designated column in the current row of as an Object.
param:
columnName the SQL name of the column
return:
the returned column value
throws:
MissingPropertyException if an SQLException happens while getting the object
see:
GroovyObject#getProperty
see:
ResultSet#getObject(java.lang.String)


getResultSet

ResultSet getResultSet()
Gets the current result set.
return:
the result set
throws:
SQLException if the result set can not be returned


invokeMethod

public Object invokeMethod(String name, Object args)


next

public boolean next()
Moves the cursor down one row from its current position. A getResultSet() cursor is initially positioned before the first row; the first call to the method next makes the first row the current row; the second call makes the second row the current row, and so on.

If an input stream is open for the current row, a call to the method next will implicitly close it. A getResultSet() object's warning chain is cleared when a new row is read.

return:
true if the new current row is valid;
false if there are no more rows
throws:
SQLException if a database access error occurs


normalizeIndex

int normalizeIndex(int index)
Takes a zero based index and convert it into an SQL based 1 based index. A negative index will count backwards from the last column.
param:
index the raw requested index (may be negative)
return:
a JDBC index
throws:
SQLException if some exception occurs finding out the column count


previous

public boolean previous()
Moves the cursor to the previous row in this getResultSet() object.
return:
true if the cursor is on a valid row;
false if it is off the result set
throws:
SQLException if a database access error
occurs or the result set type is TYPE_FORWARD_ONLY
since:
1.2


putAt

public void putAt(int index, Object newValue)
Supports integer based subscript operators for updating the values of numbered columns starting at zero. Negative indices are supported, they will count from the last column backwards.
param:
index is the number of the column to look at starting at 1
param:
newValue the updated value
throws:
java.sql.SQLException if something goes wrong
see:
ResultSet#updateObject(java.lang.String, java.lang.Object)


setProperty

public void setProperty(String columnName, Object newValue)
Updates the designated column with an Object value.
param:
columnName the SQL name of the column
param:
newValue the updated value
throws:
MissingPropertyException if an SQLException happens while setting the new value
see:
GroovyObject#setProperty
see:
ResultSet#updateObject(java.lang.String, java.lang.Object)


toString

public String toString()