com.sap.conn.jco

Interface JCoTable

All Superinterfaces:

Cloneable, Iterable<JCoField>, JCoRecord, Serializable

public interface JCoTable
extends JCoRecord

Interface that describes internal tables used in the parameter lists of function modules. It is a data container which can have multiple rows consisting of the same fields.

Method Summary

Methods

Modifier and Type	Method and Description
void	appendRow() Appends a new row at the end of the table.
void	appendRows(int numRows) Appends the specified number of empty rows at the end of the table.
void	clear() Clears the table by deleting all rows.
void	deleteAllRows() Deletes all rows of this table.
void	deleteRow() Deletes the current row.
void	deleteRow(int pos) Deletes the row at the specified position.
void	ensureBufferCapacity(int minRows) Checks the size of the internal buffer and allocates new memory, if necessary, and initializes the rows.
void	firstRow() Moves the row pointer to the first row.
int	getNumColumns() Returns the number of columns in this table.
int	getNumRows() Returns the number of rows.
JCoRecordFieldIterator	getRecordFieldIterator() Returns a JCoRecordFieldIterator.
JCoRecordMetaData	getRecordMetaData() Returns the appropriated metadata object, that was used for the creation of this table.
int	getRow() Returns the current row number.
String	getString() Returns a String containing all fields of the current row concatenated to one single String.
void	insertRow(int pos) Inserts a new empty row before the specified position.
boolean	isEmpty() Checks whether the table is empty.
boolean	isFirstRow() Retrieves whether the row pointer is on the first row of this table.
boolean	isLastRow() Retrieves whether the row pointer is on the last row of this table.
void	lastRow() Moves the row pointer to the last row.
boolean	nextRow() Moves the row pointer to the next row.
boolean	previousRow() Moves the row pointer to the previous row.
void	setRow(int pos) Sets the row pointer to the specified position.
void	setString(String fieldsAsString) Allows to set all fields for the current row handed over by one single String containing all field values.
void	trimToRows() Trims the capacity of this table to be the table's current number of rows.

Methods inherited from interface com.sap.conn.jco.JCoRecord

clone, copyFrom, fromJSON, fromJSON, getAbapObject, getAbapObject, getBigDecimal, getBigDecimal, getBigInteger, getBigInteger, getBinaryStream, getBinaryStream, getByte, getByte, getByteArray, getByteArray, getChar, getChar, getCharacterStream, getCharacterStream, getCharArray, getCharArray, getClassNameOfValue, getDate, getDate, getDouble, getDouble, getField, getField, getFieldCount, getFieldIterator, getFloat, getFloat, getInt, getInt, getLong, getLong, getMetaData, getShort, getShort, getString, getString, getStructure, getStructure, getTable, getTable, getTime, getTime, getValue, getValue, isInitialized, isInitialized, iterator, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, toJSON, toJSON, toXML, toXML, toXML, write, write

Method Detail

getRecordMetaData

JCoRecordMetaData getRecordMetaData()

Returns the appropriated metadata object, that was used for the creation of this table.

Returns:

JCoRecordMetaData instance of the appropriated metadata object

ensureBufferCapacity

void ensureBufferCapacity(int minRows)

Checks the size of the internal buffer and allocates new memory, if necessary, and initializes the rows.

Parameters:

minRows - the minimum number of rows to allocate memory for

trimToRows

void trimToRows()

Trims the capacity of this table to be the table's current number of rows. An application can use this operation to minimize the storage requirements of this table.

Note: The reallocation of the internal table buffer increases the temporary memory consumption.

isEmpty

boolean isEmpty()

Checks whether the table is empty.

Returns:

true if the table is empty, false otherwise

isFirstRow

boolean isFirstRow()

Retrieves whether the row pointer is on the first row of this table.

Returns:

true if the row pointer is on the first row, false otherwise

isLastRow

boolean isLastRow()

Retrieves whether the row pointer is on the last row of this table.

Returns:

true if the row pointer is on the last row, false otherwise

getNumRows

int getNumRows()

Returns the number of rows.

Returns:

the number of rows

getNumColumns

int getNumColumns()

Returns the number of columns in this table.
This is just a convenience method and returns the same value as getFieldCount().

Returns:

the number of columns in this table

See Also:

JCoRecord.getFieldCount()

clear

void clear()

Clears the table by deleting all rows.

Specified by:

clear in interface JCoRecord

deleteAllRows

void deleteAllRows()

Deletes all rows of this table.
This is just a convenience method and is the same as calling method clear().

See Also:

clear()

firstRow

void firstRow()

Moves the row pointer to the first row.

lastRow

void lastRow()

Moves the row pointer to the last row.

nextRow

boolean nextRow()

Moves the row pointer to the next row. Used to loop through table rows, e.g.

    if (table.getNumRows() > 0)
    {
        table.firstRow();
        do {
          ...
        } while (table.nextRow());
    }

Returns:

false if the row pointer is already positioned on the last row of the table, true otherwise

previousRow

boolean previousRow()

Moves the row pointer to the previous row. Used to loop through table rows, e.g.

    if (table.getNumRows() > 0)
    {
        table.lastRow();
        do {
          ...
        } while (table.previousRow());
    }

Returns:

false if the row pointer is already positioned on the first row of the table, true otherwise

getRow

int getRow()

Returns the current row number.
The first row number is 0, the second is 1, and so on.

Returns:

the current row number

setRow

void setRow(int pos)

Sets the row pointer to the specified position.
The first row is at position 0, the second is at position 1, and so on. This method is useful for looping through the table rows, e.g.

    int numRows = table.getNumRows();
    for (int irow = 0; i < numRows; irow++)
    {
        table.setRow(irow);
        ...
    }

Note: If a negative value is specified, the row pointer is set to position 0, and if the specified value is greater than the number of rows, it is moved to the last row.

Parameters:

pos - the position to set the row pointer to

appendRow

void appendRow()

Appends a new row at the end of the table.
The row pointer is positioned on the newly appended row.

appendRows

void appendRows(int numRows)

Appends the specified number of empty rows at the end of the table.
The row pointer is positioned on the first newly appended row.

Parameters:

numRows - the number of empty rows to append

insertRow

void insertRow(int pos)

Inserts a new empty row before the specified position.
The row pointer is positioned on the newly inserted row.

Parameters:

pos - the index of the row, before which the new row shall be inserted

deleteRow

void deleteRow()

Deletes the current row.

Note: The row pointer is left untouched unless it would point to a row that would become invalid due to the deletion operation. In this case the row pointer will be repositioned to the row at (getNumRows() - 1).

deleteRow

void deleteRow(int pos)

Deletes the row at the specified position.

Note: The row pointer is left untouched unless it would point to a row that would become invalid due to the deletion operation. In this case the row pointer will be repositioned to the row at (getNumRows() - 1).

Example:
If the row pointer points to row 10, it will still point to row 10 after the deletion operation, even if a row with pos < 10 was deleted.

Parameters:

pos - the index of the row to delete

getRecordFieldIterator

JCoRecordFieldIterator getRecordFieldIterator()

Returns a JCoRecordFieldIterator.

Returns:

an iterator over all fields of the current table row

See Also:

JCoRecord.iterator()

getString

String getString()

Returns a String containing all fields of the current row concatenated to one single String.

Note: The JCoTable must be a flat table with only simple char-like fields such as CHAR, NUM, DATE or TIME. The function mimics a 'c-style memcpy'. If the last field is a TYPE_CHAR, this method trims all trailing blanks from the returned string. In addition to programming convenience it should also improve runtime performance compared to fetching each single field one-by-one.

Returns:

the value of all fields of the current row concatenated as a String

Throws:

ConversionException - if the values could not be converted to a String or the JCoTable contains fields other than CHAR, NUM, DATE or TIME

Since:

JCo 3.1.0

setString

void setString(String fieldsAsString)

Allows to set all fields for the current row handed over by one single String containing all field values.

Note: The JCoTable must be a flat table with only simple char-like fields, such as CHAR, NUM, DATE or TIME. The function mimics a 'c-style memcpy'. In addition to programming convenience, it should also improve runtime performance compared to setting each single field one-by-one. The function will set all fields 'up to', meaning you can provide a much shorter String for only setting the first fields. If the String is bigger than the internal buffer for all fields, the remaining substring will be ignored. DATE and TIME values inside the String can contain '-' or ':' as formatter.

Parameters:

fieldsAsString - the string to set

Throws:

ConversionException - if the given String could not be converted to the table's internal representation or the JCoTable contains fields other than CHAR, NUM, DATE or TIME

Since:

JCo 3.1.0