Examples with SQLLongint org.apache.derby.iapi.types.SQLLongint used on opensource projects

Example 46 with SQLLongint

use of org.apache.derby.iapi.types.SQLLongint in project derby by apache.

the class SYSCONGLOMERATESRowFactory method makeRow.

/**
 * Make a SYSCONGLOMERATES row
 *
 * @return	Row suitable for inserting into SYSCONGLOMERATES.
 *
 * @exception   StandardException thrown on failure
 */
public ExecRow makeRow(TupleDescriptor td, TupleDescriptor parent) throws StandardException {
    ExecRow row;
    DataValueDescriptor col;
    String tabID = null;
    Long conglomNumber = null;
    String conglomName = null;
    Boolean supportsIndex = null;
    IndexRowGenerator indexRowGenerator = null;
    Boolean supportsConstraint = null;
    String conglomUUIDString = null;
    String schemaID = null;
    ConglomerateDescriptor conglomerate = (ConglomerateDescriptor) td;
    if (td != null) {
        /* Sometimes the SchemaDescriptor is non-null and sometimes it
			 * is null.  (We can't just rely on getting the schema id from 
			 * the ConglomerateDescriptor because it can be null when
			 * we are creating a new conglomerate.
			 */
        if (parent != null) {
            SchemaDescriptor sd = (SchemaDescriptor) parent;
            schemaID = sd.getUUID().toString();
        } else {
            schemaID = conglomerate.getSchemaID().toString();
        }
        tabID = conglomerate.getTableID().toString();
        conglomNumber = conglomerate.getConglomerateNumber();
        conglomName = conglomerate.getConglomerateName();
        conglomUUIDString = conglomerate.getUUID().toString();
        supportsIndex = conglomerate.isIndex();
        indexRowGenerator = conglomerate.getIndexDescriptor();
        supportsConstraint = conglomerate.isConstraint();
    }
    /* RESOLVE - It would be nice to require less knowledge about sysconglomerates
		 * and have this be more table driven.
		 */
    /* Build the row to insert */
    row = getExecutionFactory().getValueRow(SYSCONGLOMERATES_COLUMN_COUNT);
    /* 1st column is SCHEMAID (UUID - char(36)) */
    row.setColumn(1, new SQLChar(schemaID));
    /* 2nd column is TABLEID (UUID - char(36)) */
    row.setColumn(2, new SQLChar(tabID));
    /* 3rd column is CONGLOMERATENUMBER (long) */
    row.setColumn(3, new SQLLongint(conglomNumber));
    /* 4th column is CONGLOMERATENAME (varchar(128)) 
		** If null, use the tableid so we always
		** have a unique column
		*/
    row.setColumn(4, (conglomName == null) ? new SQLVarchar(tabID) : new SQLVarchar(conglomName));
    /* 5th  column is ISINDEX (boolean) */
    row.setColumn(5, new SQLBoolean(supportsIndex));
    /* 6th column is DESCRIPTOR
		*  (user type org.apache.derby.catalog.IndexDescriptor)
		*/
    row.setColumn(6, new UserType((indexRowGenerator == null ? (IndexDescriptor) null : indexRowGenerator.getIndexDescriptor())));
    /* 7th column is ISCONSTRAINT (boolean) */
    row.setColumn(7, new SQLBoolean(supportsConstraint));
    /* 8th column is CONGLOMERATEID (UUID - char(36)) */
    row.setColumn(8, new SQLChar(conglomUUIDString));
    return row;
}

Example 47 with SQLLongint

use of org.apache.derby.iapi.types.SQLLongint in project derby by apache.

the class BranchRow method createBranchRowFromOldLeafRow.

/**
 * Create a new branch row, given a old leaf row and a new child page.
 * Used by LeafControlRow to manufacture new branch rows when splitting
 * or growing the tree.
 *
 * There is no way to "copy" values of a template row, so this class just
 * stores a referece to the Indexable row passed in.  This is ok as all
 * usages of this class when instantiated this way, have an old leaf row
 * from which they are creating a new branch row with the same key values,
 * and a different child page number.
 *
 * WARNING - this branch row is only valid while the old leaf row is
 * valid, as it contains references to the columns of the old leaf row.
 * So use of the row should only provide read-only access to the objects
 * of the old leaf row which are referenced.
 */
public static BranchRow createBranchRowFromOldLeafRow(DataValueDescriptor[] leafrow, long childpageno) {
    BranchRow newbranch = new BranchRow();
    /* create new object array for the row, and copy all object references 
         * from old leaf row to new branch row.
         */
    newbranch.branchrow = new DataValueDescriptor[leafrow.length + 1];
    System.arraycopy(leafrow, 0, newbranch.branchrow, 0, leafrow.length);
    /* now create a different child page pointer object and place it as
         * last column in the new branch row.
         */
    newbranch.branchrow[newbranch.branchrow.length - 1] = new SQLLongint(childpageno);
    return (newbranch);
}

Example 48 with SQLLongint

use of org.apache.derby.iapi.types.SQLLongint in project derby by apache.

the class ControlRow method getParentPageNumber.

/**
 *	Get the page number of the parent, if it's being maintained.
 *	Note that there is intentionally no way to get the control
 *	row for the parent page - the b-tree code NEVER traverses
 *	up the tree, even in consistency checks.
 *
 *    @exception StandardException Standard exception policy.
 */
protected long getParentPageNumber() throws StandardException {
    if (this.parentPageNumber == null) {
        // Fault in the page number.
        this.parentPageNumber = new SQLLongint();
        scratch_row[CR_PARENT_COLID] = this.parentPageNumber;
        fetchDesc.setValidColumns(CR_PARENT_BITSET);
        this.page.fetchFromSlot((RecordHandle) null, CR_SLOT, scratch_row, fetchDesc, false);
    }
    // See NOTE3 about converting from int to long.
    long pageno = parentPageNumber.getLong();
    return pageno;
}

Example 49 with SQLLongint

use of org.apache.derby.iapi.types.SQLLongint in project derby by apache.

the class ControlRow method getrightSiblingPageNumber.

/**
 *	Get the page number of the right sibling. Fault it's value in if it
 *    hasn't been yet.
 *
 *    @exception StandardException Standard exception policy.
 */
protected long getrightSiblingPageNumber() throws StandardException {
    if (this.rightSiblingPageNumber == null) {
        // Fault in the page number.
        this.rightSiblingPageNumber = new SQLLongint();
        scratch_row[CR_RIGHTSIB_COLID] = this.rightSiblingPageNumber;
        fetchDesc.setValidColumns(CR_RIGHTSIB_BITSET);
        this.page.fetchFromSlot((RecordHandle) null, CR_SLOT, scratch_row, fetchDesc, false);
    }
    return (rightSiblingPageNumber.getLong());
}

Example 50 with SQLLongint

use of org.apache.derby.iapi.types.SQLLongint in project derby by apache.

the class ControlRow method getIsRoot.

protected boolean getIsRoot() throws StandardException {
    if (this.isRoot == null) {
        // Fault in the level
        this.isRoot = new SQLLongint();
        scratch_row[CR_ISROOT_COLID] = this.isRoot;
        fetchDesc.setValidColumns(CR_ISROOT_BITSET);
        this.page.fetchFromSlot((RecordHandle) null, CR_SLOT, scratch_row, fetchDesc, false);
    }
    return ((this.isRoot.getLong() == 1));
}