org.plasma.query.model.Select Maven / Gradle / Ivy
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/**
* PlasmaSDO™ License
*
* This is a community release of PlasmaSDO™, a dual-license
* Service Data Object (SDO) 2.1 implementation.
* This particular copy of the software is released under the
* version 2 of the GNU General Public License. PlasmaSDO™ was developed by
* TerraMeta Software, Inc.
*
* Copyright (c) 2013, TerraMeta Software, Inc. All rights reserved.
*
* General License information can be found below.
*
* This distribution may include materials developed by third
* parties. For license and attribution notices for these
* materials, please refer to the documentation that accompanies
* this distribution (see the "Licenses for Third-Party Components"
* appendix) or view the online documentation at
* properties;
public Select() {
super();
}
public Select(Property p1) {
this();
getProperties().add(p1);
}
public Select(Property p1, Property p2) {
this();
getProperties().add(p1);
getProperties().add(p2);
}
public Select(Property p1, Property p2, Property p3) {
this();
getProperties().add(p1);
getProperties().add(p2);
getProperties().add(p3);
}
public Select(Property p1, Property p2, Property p3, Property p4) {
this();
getProperties().add(p1);
getProperties().add(p2);
getProperties().add(p3);
getProperties().add(p4);
}
public Select(Property[] properties) {
this();
for (int i = 0; i < properties.length; i++)
getProperties().add(properties[i]);
}
public Select(WildcardProperty p1) {
this();
getProperties().add(p1);
}
public Select(WildcardProperty p1, WildcardProperty p2) {
this();
getProperties().add(p1);
getProperties().add(p2);
}
public Select(WildcardProperty p1, WildcardProperty p2, WildcardProperty p3) {
this();
getProperties().add(p1);
getProperties().add(p2);
getProperties().add(p3);
}
public Select(WildcardProperty p1, WildcardProperty p2, WildcardProperty p3, WildcardProperty p4) {
this();
getProperties().add(p1);
getProperties().add(p2);
getProperties().add(p3);
getProperties().add(p4);
}
public Select(WildcardProperty[] properties) {
this();
for (int i = 0; i < properties.length; i++)
getProperties().add(properties[i]);
}
public Select(AbstractProperty[] properties) {
this();
for (int i = 0; i < properties.length; i++)
if (properties[i] instanceof Property)
getProperties().add((Property)properties[i]);
else if (properties[i] instanceof WildcardProperty)
getProperties().add((WildcardProperty)properties[i]);
else
throw new QueryException("expected instance of Property or WildcardProperty");
}
/**
* Accepts an XPath expression, which may include predicates on any
* path step, and parses the expressions into an object model representation.
* @param expression the XPath expression
*/
public Select(String expression) {
this(new String[] {expression});
}
/**
* Accepts an array of XPath expressions, which may include predicates on
* any path step, and parses the expressions into an object model
* representation.
* @param expressions the array of XPath expressions
*/
public Select(String[] expressions) {
this();
if (expressions == null || expressions.length == 0)
throw new IllegalArgumentException("argument 'content' is null or zero length");
try {
for (int i = 0; i < expressions.length; i++)
{
Path path = null;
PathNode currPathNode = null;
QueryXPath xpath = new QueryXPath(expressions[i]);
List steps = xpath.getSteps();
for (int j = 0; j < steps.size(); j++) {
Step step = steps.get(j);
if (!(step instanceof NameStep))
throw new QueryException("cannot determine traversal path - "
+ "expected named path step not, "
+ step.getClass().getName());
NameStep nameStep = (NameStep)step;
if (log.isDebugEnabled())
log.debug("step: " + nameStep.getLocalName());
if (j+1 == steps.size()) {// last ? expect a property
if (path != null)
if (!Wildcard.WILDCARD_CHAR.equals(nameStep.getLocalName()))
getProperties().add(new Property(nameStep.getLocalName(), path));
else
getProperties().add(new WildcardProperty(path));
else
if (!Wildcard.WILDCARD_CHAR.equals(nameStep.getLocalName()))
getProperties().add(new Property(nameStep.getLocalName()));
else
getProperties().add(new WildcardProperty());
}
else
{
if (path == null)
path = new Path();
currPathNode = new PathNode(nameStep.getLocalName());
path.addPathNode(currPathNode);
if (step.getPredicates() != null && step.getPredicates().size() > 0) {
QueryPredicateVisitor visitor = new QueryPredicateVisitor();
xpath.acceptBreadthFirst(step, visitor);
currPathNode.setWhere(visitor.getResult());
}
}
}
}
} catch (JaxenException e) {
throw new QueryException(e);
}
}
public List getProperties() {
if (properties == null) {
properties = new ArrayList();
}
return this.properties;
}
public void addProperty(AbstractProperty property) {
this.getProperties().add(property);
}
public void addAll(AbstractProperty[] properties) {
if (properties != null)
for (AbstractProperty prop : properties)
this.getProperties().add(prop);
}
/**
* Gets the value of the textContent property.
*
* @return
* possible object is
* {@link TextContent }
*
*/
public TextContent getTextContent() {
return textContent;
}
/**
* Sets the value of the textContent property.
*
* @param value
* allowed object is
* {@link TextContent }
*
*/
public void setTextContent(TextContent value) {
this.textContent = value;
}
public void accept(QueryVisitor visitor)
{
visitor.start(this);
if (visitor.getContext().getTraversal().ordinal() == Traversal.CONTINUE.ordinal())
{
for (int i = 0; i < this.getProperties().size(); i++)
this.getProperties().get(i).accept(visitor);
}
visitor.end(this);
}
public DataProperty[] getPropertiesDeep()
{
final ArrayList list = new ArrayList(12);
QueryVisitor visitor = new DefaultQueryVisitor() {
public void start(Property property)
{
list.add(property);
super.start(property);
}
};
this.accept(visitor);
Property[] results = new Property[list.size()];
list.toArray(results);
return results;
}
public boolean hasDistinct(DataProperty[] props)
{
for (int i = 0; i < props.length; i++)
if (props[i].isDistinct())
return true;
return false;
}
public boolean hasDistinctProperties()
{
DataProperty[] props = getPropertiesDeep();
for (int i = 0; i < props.length; i++)
if (props[i].isDistinct())
return true;
return false;
}
}