Example usage for org.apache.commons.collections Predicate Predicate

Introduction

In this page you can find the example usage for org.apache.commons.collections Predicate Predicate.

Prototype

Predicate

Source Link

Usage

From source file:org.apache.cayenne.wocompat.EOModelProcessor.java

public EOModelProcessor() {
    prototypeChecker = new Predicate() {

        @Override//from  w  w w  . ja v a  2 s  .c o  m
        public boolean evaluate(Object object) {
            if (object == null) {
                return false;
            }

            String entityName = object.toString();
            return entityName.startsWith("EO") && entityName.endsWith("Prototypes");
        }
    };
}

From source file:org.apache.cayenne.xml.XMLUtil.java

/**
 * Returns the first element among the direct children that has a matching name.
 *///from  ww w.  java2s  .c  om
static Element getChild(Node node, final String name) {
    Predicate p = new Predicate() {

        public boolean evaluate(Object object) {
            if (object instanceof Element) {
                Element e = (Element) object;
                return name.equals(e.getNodeName());
            }

            return false;
        }
    };

    return (Element) firstMatch(node.getChildNodes(), p);
}

From source file:org.apache.cayenne.xml.XMLUtil.java

/**
 * Returns all elements among the direct children that have a matching name.
 *//* w  ww  . j  av  a2  s . co  m*/
static List<Element> getChildren(Node node, final String name) {

    Predicate p = new Predicate() {

        public boolean evaluate(Object object) {
            if (object instanceof Element) {
                Element e = (Element) object;
                return name.equals(e.getNodeName());
            }
            return false;
        }
    };

    return (List<Element>) CollectionUtils.select(getChildren(node), p);
}

From source file:org.apache.ddlutils.model.Table.java

/**
 * Gets a list of non-unique indices on this table.
 * //from   w  w w  . ja v  a 2s  .co m
 * @return The unique indices
 */
public Index[] getNonUniqueIndices() {
    Collection nonUniqueIndices = CollectionUtils.select(_indices, new Predicate() {
        public boolean evaluate(Object input) {
            return !((Index) input).isUnique();
        }
    });

    return (Index[]) nonUniqueIndices.toArray(new Index[nonUniqueIndices.size()]);
}

From source file:org.apache.ddlutils.model.Table.java

/**
 * Gets a list of unique indices on this table.
 * /*from   w ww .j  a  va 2  s . c  om*/
 * @return The unique indices
 */
public Index[] getUniqueIndices() {
    Collection uniqueIndices = CollectionUtils.select(_indices, new Predicate() {
        public boolean evaluate(Object input) {
            return ((Index) input).isUnique();
        }
    });

    return (Index[]) uniqueIndices.toArray(new Index[uniqueIndices.size()]);
}

From source file:org.apache.ddlutils.model.Table.java

/**
 * Returns the primary key columns of this table.
 * //from   www  .  jav  a2 s  .c  o m
 * @return The primary key columns
 */
public Column[] getPrimaryKeyColumns() {
    Collection pkColumns = CollectionUtils.select(_columns, new Predicate() {
        public boolean evaluate(Object input) {
            return ((Column) input).isPrimaryKey();
        }
    });

    return (Column[]) pkColumns.toArray(new Column[pkColumns.size()]);
}

From source file:org.apache.ddlutils.model.Table.java

/**
 * Returns the auto increment columns in this table. If none are found,
 * then an empty array will be returned.
 * /* w w w  .  ja  va2s  .c  o  m*/
 * @return The auto increment columns
 */
public Column[] getAutoIncrementColumns() {
    Collection autoIncrColumns = CollectionUtils.select(_columns, new Predicate() {
        public boolean evaluate(Object input) {
            return ((Column) input).isAutoIncrement();
        }
    });

    return (Column[]) autoIncrColumns.toArray(new Column[autoIncrColumns.size()]);
}

From source file:org.apache.ddlutils.model.Table.java

/**
 * Returns the required (not-nullable) columns in this table. If none are found,
 * then an empty array will be returned.
 * /*www  .  ja  v  a 2s .com*/
 * @return The required columns
 */
public Column[] getRequiredColumns() {
    Collection requiredColumns = CollectionUtils.select(_columns, new Predicate() {
        public boolean evaluate(Object input) {
            return ((Column) input).isRequired();
        }
    });

    return (Column[]) requiredColumns.toArray(new Column[requiredColumns.size()]);
}

From source file:org.apache.ddlutils.platform.PlatformImplBase.java

/**
 * Returns all properties where the column is not non-autoincrement and for which the bean
 * either has a value or the column hasn't got a default value, for the given dyna class.
 * //  ww w  . j a  v a 2s .co m
 * @param model     The database model
 * @param dynaClass The dyna class
 * @param bean      The bean
 * @return The properties
 */
private SqlDynaProperty[] getPropertiesForInsertion(Database model, SqlDynaClass dynaClass,
        final DynaBean bean) {
    SqlDynaProperty[] properties = dynaClass.getSqlDynaProperties();

    Collection result = CollectionUtils.select(Arrays.asList(properties), new Predicate() {
        public boolean evaluate(Object input) {
            SqlDynaProperty prop = (SqlDynaProperty) input;

            if (bean.get(prop.getName()) != null) {
                // we ignore properties for which a value is present in the bean
                // only if they are identity and identity override is off or
                // the platform does not allow the override of the auto-increment
                // specification
                return !prop.getColumn().isAutoIncrement()
                        || (isIdentityOverrideOn() && getPlatformInfo().isIdentityOverrideAllowed());
            } else {
                // we also return properties without a value in the bean
                // if they ain't auto-increment and don't have a default value
                // in this case, a NULL is inserted
                return !prop.getColumn().isAutoIncrement() && (prop.getColumn().getDefaultValue() == null);
            }
        }
    });

    return (SqlDynaProperty[]) result.toArray(new SqlDynaProperty[result.size()]);
}

From source file:org.apache.ddlutils.platform.PlatformImplBase.java

/**
 * Returns all identity properties whose value were defined by the database and which
 * now need to be read back from the DB.
 * //  www  .  ja  v  a 2 s  .c om
 * @param model     The database model
 * @param dynaClass The dyna class
 * @param bean      The bean
 * @return The columns
 */
private Column[] getRelevantIdentityColumns(Database model, SqlDynaClass dynaClass, final DynaBean bean) {
    SqlDynaProperty[] properties = dynaClass.getSqlDynaProperties();

    Collection relevantProperties = CollectionUtils.select(Arrays.asList(properties), new Predicate() {
        public boolean evaluate(Object input) {
            SqlDynaProperty prop = (SqlDynaProperty) input;

            // we only want those identity columns that were really specified by the DB
            // if the platform allows specification of values for identity columns
            // in INSERT/UPDATE statements, then we need to filter the corresponding
            // columns out
            return prop.getColumn().isAutoIncrement() && (!isIdentityOverrideOn()
                    || !getPlatformInfo().isIdentityOverrideAllowed() || (bean.get(prop.getName()) == null));
        }
    });

    Column[] columns = new Column[relevantProperties.size()];
    int idx = 0;

    for (Iterator propIt = relevantProperties.iterator(); propIt.hasNext(); idx++) {
        columns[idx] = ((SqlDynaProperty) propIt.next()).getColumn();
    }
    return columns;
}