Example usage for android.database CursorWindow clear

Introduction

In this page you can find the example usage for android.database CursorWindow clear.

Prototype

public void clear() 

Source Link

Document

Clears out the existing contents of the window, making it safe to reuse for new data.

Usage

From source file:mobisocial.musubi.provider.IdentityCursorWrapper.java

@Override
public void fillWindow(int position, CursorWindow window) {
    if (position < 0 || position > getCount()) {
        return;/*from w  ww . ja v  a  2s.  co m*/
    }
    window.acquireReference();

    try {
        moveToPosition(position - 1);
        window.clear();
        window.setStartPosition(position);
        int columnNum = getColumnCount();
        window.setNumColumns(columnNum);
        while (moveToNext() && window.allocRow()) {
            for (int i = 0; i < columnNum; i++) {
                if (i == colThumb || i == colHash) {
                    byte[] field = getBlob(i);
                    if (!window.putBlob(field, getPosition(), i)) {
                        window.freeLastRow();
                        break;
                    }
                } else {
                    String field = getString(i);
                    if (field != null) {
                        if (!window.putString(field, getPosition(), i)) {
                            window.freeLastRow();
                            break;
                        }
                    } else {
                        if (!window.putNull(getPosition(), i)) {
                            window.freeLastRow();
                            break;
                        }
                    }
                }
            }
        }
    } catch (IllegalStateException e) {
        // simply ignore it
    } finally {
        window.releaseReference();
    }
}

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