DynSequenceImplpublic class DynSequenceImpl extends DynAnyCollectionImpl implements DynSequence
| Methods Summary |
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| protected void | checkValue(java.lang.Object[] value)
if (value == null || value.length == 0) {
clearData();
index = NO_INDEX;
return;
} else {
index = 0;
}
int bound = getBound();
if (bound > 0 && value.length > bound) {
throw new InvalidValue();
}
| | public int | get_length()
if (status == STATUS_DESTROYED) {
throw wrapper.dynAnyDestroyed() ;
}
return (checkInitComponents() ? components.length : 0);
| | protected boolean | initializeAnyFromComponents()
OutputStream out = any.create_output_stream();
// Writing the length first is the only difference to supers implementation
out.write_long(components.length);
for (int i=0; i<components.length; i++) {
if (components[i] instanceof DynAnyImpl) {
((DynAnyImpl)components[i]).writeAny(out);
} else {
// Not our implementation. Nothing we can do to prevent copying.
components[i].to_any().write_value(out);
}
}
any.read_value(out.create_input_stream(), any.type());
return true;
| | protected boolean | initializeComponentsFromAny()
// This typeCode is of kind tk_sequence.
TypeCode typeCode = any.type();
int length;
TypeCode contentType = getContentType();
InputStream input;
try {
input = any.create_input_stream();
} catch (BAD_OPERATION e) {
return false;
}
length = input.read_long();
components = new DynAny[length];
anys = new Any[length];
for (int i=0; i<length; i++) {
// _REVISIT_ Could use read_xxx_array() methods on InputStream for efficiency
// but only for primitive types
anys[i] = DynAnyUtil.extractAnyFromStream(contentType, input, orb);
try {
// Creates the appropriate subtype without copying the Any
components[i] = DynAnyUtil.createMostDerivedDynAny(anys[i], orb, false);
} catch (InconsistentTypeCode itc) { // impossible
}
}
return true;
| | protected boolean | initializeComponentsFromTypeCode()
// already done in the type code constructor
components = new DynAny[0];
anys = new Any[0];
return true;
| | public void | set_length(int len)
if (status == STATUS_DESTROYED) {
throw wrapper.dynAnyDestroyed() ;
}
int bound = getBound();
if (bound > 0 && len > bound) {
throw new InvalidValue();
}
checkInitComponents();
int oldLength = components.length;
if (len > oldLength) {
// Increase length
DynAny[] newComponents = new DynAny[len];
Any[] newAnys = new Any[len];
System.arraycopy(components, 0, newComponents, 0, oldLength);
System.arraycopy(anys, 0, newAnys, 0, oldLength);
components = newComponents;
anys = newAnys;
// Newly added elements are default-initialized
TypeCode contentType = getContentType();
for (int i=oldLength; i<len; i++) {
createDefaultComponentAt(i, contentType);
}
// Increasing the length of a sequence sets the current position to the first
// newly-added element if the previous current position was -1.
if (index == NO_INDEX)
index = oldLength;
} else if (len < oldLength) {
// Decrease length
DynAny[] newComponents = new DynAny[len];
Any[] newAnys = new Any[len];
System.arraycopy(components, 0, newComponents, 0, len);
System.arraycopy(anys, 0, newAnys, 0, len);
// It is probably right not to destroy the released component DynAnys.
// Some other DynAny or a user variable might still hold onto them
// and if not then the garbage collector will take care of it.
//for (int i=len; i<oldLength; i++) {
// components[i].destroy();
//}
components = newComponents;
anys = newAnys;
// ?f the length of the sequence is set to zero, the current position is set to -1.
// ?f the current position is -1 before decreasing the length, it remains at -1.
// ?f the current position indicates a valid element and that element is not removed
// when the length is decreased, the current position remains unaffected.
// ?f the current position indicates a valid element and that element is removed,
// the current position is set to -1.
if (len == 0 || index >= len) {
index = NO_INDEX;
}
} else {
// Length unchanged
// Maybe components is now default initialized from type code
if (index == NO_INDEX && len > 0) {
index = 0;
}
}
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