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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
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*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
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* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
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*
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*/
/*
* FieldDesc.java
*
* Created on March 3, 2000
*
*/
package com.sun.jdo.spi.persistence.support.sqlstore.model;
import com.sun.jdo.api.persistence.support.JDOUserException;
import com.sun.jdo.api.persistence.support.JDOFatalUserException;
import com.sun.jdo.spi.persistence.support.sqlstore.*;
import com.sun.jdo.spi.persistence.support.sqlstore.sco.SqlTimestamp;
import com.sun.jdo.spi.persistence.utility.FieldTypeEnumeration;
import com.sun.jdo.spi.persistence.utility.I18NHelper;
import com.sun.jdo.spi.persistence.utility.logging.Logger;
import org.netbeans.modules.dbschema.ColumnElement;
import java.lang.reflect.Field;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Date;
import java.util.ResourceBundle;
/**
*
*/
public abstract class FieldDesc implements java.io.Serializable {
public static final int GROUP_DEFAULT = 1;
public static final int GROUP_NONE = 0;
/** This field is used for concurrency check */
public static final int PROP_IN_CONCURRENCY_CHECK = 0x1;
/** Update before image when this field is updated. This property is always set */
public static final int PROP_LOG_ON_UPDATE = 0x2;
/** This field is read only */
public static final int PROP_READ_ONLY = 0x4;
/** Record updates on this field to DB. This property is always set for primitive fields. */
public static final int PROP_RECORD_ON_UPDATE = 0x8;
/** Relationship updates are processed from the side containing this field. */
public static final int PROP_REF_INTEGRITY_UPDATES = 0x10;
/**
* This field is the primary tracked field.
* <P>
* Primitive fields track each other if they are mapped to same columns.
* One of them is made the primary tracked field as per precedence rules
* on the field types. This field is used to bind values to columns while
* updating the database.
* <P>
* RESOLVE:
* Investigate the runtime behaviour for relationship fields marked primary.
*
* @see #PROP_SECONDARY_TRACKED_FIELD
* @see ClassDesc#computeTrackedPrimitiveFields
* @see ClassDesc#computeTrackedRelationshipFields
*/
public static final int PROP_PRIMARY_TRACKED_FIELD = 0x20;
/**
* This field is a secondary tracked field.
* <P>
* Seconday tracked primitive fields are not used for updates to the database
* or for concurrency checking.
* <P>
* RESOLVE:
* Investigate the runtime behaviour for secondary tracked relationship fields.
*
* @see #PROP_PRIMARY_TRACKED_FIELD
* @see ClassDesc#computeTrackedPrimitiveFields
* @see ClassDesc#computeTrackedRelationshipFields
*/
public static final int PROP_SECONDARY_TRACKED_FIELD = 0x40;
/**
* This field tracks a relationship field.
* Only primitive fields can have this property set.
*/
public static final int PROP_TRACK_RELATIONSHIP_FIELD = 0x80;
/** This field is part of a primary key. */
public static final int PROP_PRIMARY_KEY_FIELD = 0x100;
/** This field is used for version consistency validation. */
public static final int PROP_VERSION_FIELD = 0x200;
/** This field is part of a foreign key. */
public static final int PROP_FOREIGN_KEY_FIELD = 0x400;
private static final BigDecimal LONG_MIN_VALUE =
new BigDecimal(String.valueOf(Long.MIN_VALUE));
private static final BigDecimal LONG_MAX_VALUE =
new BigDecimal(String.valueOf(Long.MAX_VALUE));
public int absoluteID;
public int fetchGroup;
public int concurrencyGroup;
public int sqlProperties;
private Field field;
private Class fieldType;
/**
* Contains a translation from the field type class to int constants.
* These constants can be used in switch statements on the field type.
*/
private int enumFieldType;
private String fieldName;
private Class declaringClass;
// Should be moved to ForeignFieldDesc.
private Class componentType;
private ArrayList trackedFields;
/** Back pointer to declaring class descriptor. */
protected final ClassDesc classDesc;
/** The logger. */
protected final static Logger logger = LogHelperSQLStore.getLogger();
/** I18N message handler. */
protected final static ResourceBundle messages = I18NHelper.loadBundle(
"com.sun.jdo.spi.persistence.support.sqlstore.Bundle", // NOI18N
FieldDesc.class.getClassLoader());
FieldDesc(ClassDesc classDesc) {
// Set the default properties
sqlProperties |= FieldDesc.PROP_REF_INTEGRITY_UPDATES;
sqlProperties |= FieldDesc.PROP_IN_CONCURRENCY_CHECK;
sqlProperties |= FieldDesc.PROP_LOG_ON_UPDATE;
// For Boston, by default, a field is in group -1 which means that
// it is in its own group.
concurrencyGroup = -1;
this.classDesc = classDesc;
}
public String toString() {
return classDesc.getName() + "." + getName(); // NOI18N
}
public Class getComponentType() {
return componentType;
}
public Class getDeclaringClass() {
return declaringClass;
}
public Class getType() {
if (fieldType != null) return fieldType;
return Object.class;
}
public int getEnumType() {
return enumFieldType;
}
public String getName() {
if (fieldName == null)
fieldName = "hidden" + -absoluteID; // NOI18N
return fieldName;
}
public Object getValue(StateManager sm) {
if (sm == null) return null;
if (absoluteID >= 0) {
return ((PersistenceCapable) sm.getPersistent()).jdoGetField(absoluteID);
} else {
return sm.getHiddenValue(absoluteID);
}
}
public void setValue(StateManager sm, Object value) {
boolean debug = logger.isLoggable(Logger.FINEST);
if (sm == null) return;
if (absoluteID >= 0) {
if (debug) {
if ((value != null) &&
((value instanceof com.sun.jdo.api.persistence.support.PersistenceCapable) ||
(value instanceof java.util.Collection))) {
Object[] items = new Object[] {field.getName(),value.getClass()};
logger.finest("sqlstore.model.fielddesc.fieldname",items); // NOI18N
} else {
Object[] items = new Object[] {field.getName(),value};
logger.finest("sqlstore.model.fielddesc.fieldname",items); // NOI18N
}
}
// If the given value is null, and the field type is primitive
// scalar, we need to convert it to some default value. The following
// table shows the mapping:
// primitive number types (int, long, etc) --> 0
// boolean --> false
// char --> '\0'
if (value == null) {
switch (enumFieldType) {
case FieldTypeEnumeration.BOOLEAN_PRIMITIVE:
value = new Boolean(false);
break;
case FieldTypeEnumeration.CHARACTER_PRIMITIVE:
value = new Character('\0');
break;
case FieldTypeEnumeration.BYTE_PRIMITIVE:
case FieldTypeEnumeration.SHORT_PRIMITIVE:
case FieldTypeEnumeration.INTEGER_PRIMITIVE:
case FieldTypeEnumeration.LONG_PRIMITIVE:
case FieldTypeEnumeration.FLOAT_PRIMITIVE:
case FieldTypeEnumeration.DOUBLE_PRIMITIVE:
// Replace value type if necessary
value = convertValue(new Integer(0), sm);
break;
}
}
// We've tried our best to convert the value to the proper type.
// (convertValue() was called outside this class if necessary)
// Here is where we actually set the value. Anything that didn't
// get converted will get a ClassCastException.
((PersistenceCapable) sm.getPersistent()).jdoSetField(absoluteID, value);
} else {
if (debug) {
Object[] items = new Object[] {getName(),value};
logger.finest("sqlstore.model.fielddesc.fieldname",items); // NOI18N
}
sm.setHiddenValue(absoluteID, value);
}
}
public ArrayList getTrackedFields() {
return trackedFields;
}
/**
* Returns true if this field is a primary key field.
*/
public boolean isKeyField() {
return ((sqlProperties & PROP_PRIMARY_KEY_FIELD) > 0);
}
/**
* Returns true if this field is a foreign key field.
*/
public boolean isForeignKeyField() {
return ((sqlProperties & PROP_FOREIGN_KEY_FIELD) > 0);
}
/**
* Returns true if this field is a relationship field.
*/
public boolean isRelationshipField() {
return false;
}
public Object convertValue(Object value, StateManager sm) {
boolean debug = logger.isLoggable(Logger.FINEST);
if (value == null) {
if (debug)
logger.finest("sqlstore.model.fielddesc.convertvalue"); // NOI18N
return value;
}
if (absoluteID < 0) {
// Hidden field nothing to convert
if (debug)
logger.finest("sqlstore.model.fielddesc.convertvalue.hidden",new Integer(absoluteID)); // NOI18N
return value;
}
if (debug) {
Object[] items = new Object[] {value,value.getClass().getName(),fieldType};
logger.finest("sqlstore.model.fielddesc.convertvalue.from_to",items); // NOI18N
}
// Here, we'll try our best to convert the given value to the
// proper type before setting the value using reflection.
if (value instanceof Number) {
Number number = (Number) value;
switch (enumFieldType) {
case FieldTypeEnumeration.BOOLEAN_PRIMITIVE:
case FieldTypeEnumeration.BOOLEAN:
// Well, boolean in java is not really a number,
// but we'll try to convert it anyway. The algorithm is
// if the number is 0, set the field to false, otherwise
// set it to true.
// The easiest way to do this is to convert the number to
// a double before comparing it to 0.
if (number.doubleValue() == 0) {
value = new Boolean(false);
} else {
value = new Boolean(true);
}
break;
case FieldTypeEnumeration.BYTE_PRIMITIVE:
case FieldTypeEnumeration.BYTE:
if (!(value instanceof Byte)) {
assertIsValid(number, Byte.MIN_VALUE, Byte.MAX_VALUE);
value = new Byte(number.byteValue());
}
break;
case FieldTypeEnumeration.SHORT_PRIMITIVE:
case FieldTypeEnumeration.SHORT:
if (!(value instanceof Short)) {
assertIsValid(number, Short.MIN_VALUE, Short.MAX_VALUE);
value = new Short(number.shortValue());
}
break;
case FieldTypeEnumeration.INTEGER_PRIMITIVE:
case FieldTypeEnumeration.INTEGER:
if (!(value instanceof Integer)) {
assertIsValid(number, Integer.MIN_VALUE, Integer.MAX_VALUE);
value = new Integer(number.intValue());
}
break;
case FieldTypeEnumeration.LONG_PRIMITIVE:
case FieldTypeEnumeration.LONG:
if (!(value instanceof Long)) {
assertIsValidLong(number);
value = new Long(number.longValue());
}
break;
case FieldTypeEnumeration.FLOAT_PRIMITIVE:
case FieldTypeEnumeration.FLOAT:
if (!(value instanceof Float))
value = new Float(number.floatValue());
break;
case FieldTypeEnumeration.DOUBLE_PRIMITIVE:
case FieldTypeEnumeration.DOUBLE:
if (!(value instanceof Double)) {
// FIX FOR CONVERT FROM FLOAT.
if (value instanceof Float)
value = new Double(number.toString());
else
value = new Double(number.doubleValue());
}
break;
case FieldTypeEnumeration.BIGDECIMAL:
if (!(value instanceof BigDecimal)) {
if (value instanceof Double)
value = new BigDecimal(number.doubleValue());
else if (value instanceof BigInteger)
value = new BigDecimal((java.math.BigInteger) value);
else
value = new BigDecimal(number.toString());
}
break;
case FieldTypeEnumeration.BIGINTEGER:
if (!(value instanceof BigInteger)) {
if (value instanceof BigDecimal)
value = ((BigDecimal) value).toBigInteger();
else
value = new BigInteger(number.toString());
}
break;
}
} else {
switch (enumFieldType) {
case FieldTypeEnumeration.STRING:
// If the value is not a String, we take the string representation
// of the value.
if (!(value instanceof String)) {
value = value.toString();
}
break;
case FieldTypeEnumeration.UTIL_DATE:
case FieldTypeEnumeration.SQL_DATE:
case FieldTypeEnumeration.SQL_TIME:
case FieldTypeEnumeration.SQL_TIMESTAMP:
value = convertToDateFieldType(value, sm);
break;
case FieldTypeEnumeration.CHARACTER_PRIMITIVE:
case FieldTypeEnumeration.CHARACTER:
// If the value is not a character, we take the first character
// of the string representation.
if (!(value instanceof Character)) {
String str = value.toString();
value = getCharFromString(str);
}
break;
case FieldTypeEnumeration.BOOLEAN_PRIMITIVE:
case FieldTypeEnumeration.BOOLEAN:
// If the value is not a boolean, we construct a boolean
// using its string value.
if (!(value instanceof Boolean)) {
if ((value instanceof String) &&
(value).equals("1")) // NOI18N
value = "true"; // NOI18N
value = new Boolean(value.toString());
}
break;
}
}
return value;
}
/**
* Creates a new SCO instance. Therefore checks if PersistenceManager
* settings require SCO creation. SCOs will typically be created
* in a non managed environment.
*
* @param value Value being converted.
* @param sm StateManager of the persistent object being bound.
* @return New SCO instance according to <code>enumFieldType</code>
* of this field. Returns null if no SCO was created.
*/
public Object createSCO(Object value, StateManager sm) {
Object retVal = null;
PersistenceManager pm = null;
if (sm != null) {
pm = (PersistenceManager) sm.getPersistenceManagerInternal();
}
if (pm != null && pm.getRequireTrackedSCO()) {
// Create a SCO instance and set values.
retVal = pm.newSCOInstanceInternal(fieldType,
sm.getPersistent(),
getName());
initializeSCO(retVal, value);
}
return retVal;
}
public static Character getCharFromString(String str) {
Character retVal = null;
if (str.length() == 0) {
retVal = new Character('\0');
} else {
retVal = new Character(str.charAt(0));
}
return retVal;
}
/**
* Converts <code>value</code> to the type given by <code>enumFieldType</code>.
* Creates a new SCO instance if the PersistenceManager settings require SCO
* creation.
*
* @param value Value being converted.
* @param sm StateManager associated to the persistent object being bound.
* @return Converted object. If no convertion is nessessary the original
* value is returned.
*/
private Object convertToDateFieldType(Object value, StateManager sm) {
if (value instanceof SCO) {
((SCO) value).unsetOwner();
}
Object retVal = createSCO(value, sm);
if (retVal == null) {
// We didn't create a SCO. This might be because we're running
// in a managed environment where we don't need to manage mutable
// objects as SCO. Simply convert value to the field type for
// this field.
retVal = convertToDateFieldType(value);
}
return retVal;
}
/**
* Returns an unmanaged Date instance. Converts <code>value</code>
* to the field type for this field according to <code>enumFieldType</code>.
*
* @param value Value being converted.
* @return Date instance according to <code>enumFieldType</code> of this field.
* If <code>value</code> is already of the correct type, it's instantly
* returned. Otherwise a new Date instance of the correct type is created.
*/
private Object convertToDateFieldType(Object value) {
Object retVal = value;
if (!fieldType.equals(value.getClass())) {
// Convert to the new fieldType only.
if (value instanceof Date) {
switch (enumFieldType) {
case FieldTypeEnumeration.UTIL_DATE:
retVal = new java.util.Date(((Date) value).getTime());
break;
case FieldTypeEnumeration.SQL_DATE:
retVal = new java.sql.Date(((Date) value).getTime());
break;
case FieldTypeEnumeration.SQL_TIME:
retVal = new java.sql.Time(((Date) value).getTime());
break;
case FieldTypeEnumeration.SQL_TIMESTAMP:
retVal = new java.sql.Timestamp(((Date) value).getTime());
// Adjust nano second information for Timestamps.
// NOTE: The constructor java.sql.Timestamp(long) calculates nano
// seconds. If the old and new instance both represent Timestamps,
// the calculation truncates nano second information from the
// original object, see java.sql.Timestamp#getTime().
if (value instanceof java.sql.Timestamp) {
// Overwrite nano second information with the original value.
((java.sql.Timestamp) retVal).setNanos(((java.sql.Timestamp) value).getNanos());
}
break;
default:
}
}
}
return retVal;
}
/**
* Initializes the SCO instance <code>scoVal</code> corresponding
* to <code>value</code>. Currently only used for dates.
*
* @param scoVal SCO instance being populated.
* @param value Instance used for initialisation.
*/
private void initializeSCO(Object scoVal, Object value) {
switch(enumFieldType) {
case FieldTypeEnumeration.UTIL_DATE:
case FieldTypeEnumeration.SQL_DATE:
case FieldTypeEnumeration.SQL_TIME:
case FieldTypeEnumeration.SQL_TIMESTAMP:
// Initializing SCODate
if (value instanceof Date) {
// Set milliseconds information
((SCODate) scoVal).setTimeInternal(((Date) value).getTime());
// Adjust nano second information for Timestamps.
// NOTE: java.sql.Timestamp#setTime(long) recalculates nano
// seconds. If old and new instance both represent Timestamps,
// the recalculation truncates nano second information from the
// original object, see java.sql.Timestamp#getTime().
if (enumFieldType == FieldTypeEnumeration.SQL_TIMESTAMP
&& value instanceof java.sql.Timestamp) {
// Overwrite nano second information with original value
((SqlTimestamp) scoVal).setNanosInternal(((java.sql.Timestamp) value).getNanos());
}
}
break;
default:
}
}
private void assertIsValid(Number number, double min_value, double max_value) {
double x = number.doubleValue();
if (x < min_value)
throw new JDOUserException(I18NHelper.getMessage(messages,
"core.fielddesc.minvalue", // NOI18N
new Object[]{number, String.valueOf(min_value), fieldType.getName()}));
if (x > max_value)
throw new JDOUserException(I18NHelper.getMessage(messages,
"core.fielddesc.maxvalue", // NOI18N
new Object[]{number, String.valueOf(max_value), fieldType.getName()}));
}
private void assertIsValidLong(Number number) {
BigDecimal bd = null;
if (number instanceof BigDecimal) {
bd = (BigDecimal) number;
} else {
bd = new BigDecimal(number.toString());
}
if (bd.compareTo(LONG_MIN_VALUE) < 0) {
throw new JDOUserException(I18NHelper.getMessage(messages,
"core.fielddesc.minvalue", // NOI18N
new Object[]{number, String.valueOf(Long.MIN_VALUE),
fieldType.getName()}));
} else if (bd.compareTo(LONG_MAX_VALUE) > 0) {
throw new JDOUserException(I18NHelper.getMessage(messages,
"core.fielddesc.maxvalue", // NOI18N
new Object[]{number, String.valueOf(Long.MAX_VALUE),
fieldType.getName()}));
}
}
//
// ------------ Initialisation methods ------------
//
void setupDesc(final Class classType, final String name) {
Field f = (Field) java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public Object run() {
try {
return classType.getDeclaredField(name);
} catch (NoSuchFieldException e) {
throw new JDOFatalUserException(I18NHelper.getMessage(messages,
"core.configuration.loadfailed.field", // NOI18N
name, classType.getName()), e);
}
}
});
setupDesc(f);
}
protected void setupDesc(Field f) {
field = f;
fieldName = f.getName();
declaringClass = field.getDeclaringClass();
fieldType = field.getType();
enumFieldType = translateToEnumType(fieldType);
if (logger.isLoggable(Logger.FINEST)) {
Object[] items= new Object[] {fieldName,fieldType};
logger.finest("sqlstore.model.fielddesc.setupdesc",items); // NOI18N
}
}
private static int translateToEnumType(Class fldType) {
int retVal = FieldTypeEnumeration.NOT_ENUMERATED;
if(fldType == Boolean.TYPE ) retVal = FieldTypeEnumeration.BOOLEAN_PRIMITIVE;
else if(fldType == Character.TYPE ) retVal = FieldTypeEnumeration.CHARACTER_PRIMITIVE;
else if(fldType == Byte.TYPE ) retVal = FieldTypeEnumeration.BYTE_PRIMITIVE;
else if(fldType == Short.TYPE ) retVal = FieldTypeEnumeration.SHORT_PRIMITIVE;
else if(fldType == Integer.TYPE ) retVal = FieldTypeEnumeration.INTEGER_PRIMITIVE;
else if(fldType == Long.TYPE ) retVal = FieldTypeEnumeration.LONG_PRIMITIVE ;
else if(fldType == Float.TYPE ) retVal = FieldTypeEnumeration.FLOAT_PRIMITIVE;
else if(fldType == Double.TYPE ) retVal = FieldTypeEnumeration.DOUBLE_PRIMITIVE;
else if(fldType == Boolean.class ) retVal = FieldTypeEnumeration.BOOLEAN;
else if(fldType == Character.class ) retVal = FieldTypeEnumeration.CHARACTER;
else if(fldType == Byte.class ) retVal = FieldTypeEnumeration.BYTE;
else if(fldType == Short.class ) retVal = FieldTypeEnumeration.SHORT;
else if(fldType == Integer.class ) retVal = FieldTypeEnumeration.INTEGER;
else if(fldType == Long.class ) retVal = FieldTypeEnumeration.LONG;
else if(fldType == Float.class ) retVal = FieldTypeEnumeration.FLOAT;
else if(fldType == Double.class ) retVal = FieldTypeEnumeration.DOUBLE;
else if(fldType == java.math.BigDecimal.class) retVal = FieldTypeEnumeration.BIGDECIMAL;
else if(fldType == java.math.BigInteger.class) retVal = FieldTypeEnumeration.BIGINTEGER;
else if(fldType == String.class ) retVal = FieldTypeEnumeration.STRING;
else if(fldType == java.util.Date.class ) retVal = FieldTypeEnumeration.UTIL_DATE;
else if(fldType == java.sql.Date.class ) retVal = FieldTypeEnumeration.SQL_DATE;
else if(fldType == java.sql.Time.class ) retVal = FieldTypeEnumeration.SQL_TIME;
else if(fldType == java.sql.Timestamp.class ) retVal = FieldTypeEnumeration.SQL_TIMESTAMP;
else if(fldType.isArray()) {
if(fldType.getComponentType() == Byte.TYPE) {
retVal = FieldTypeEnumeration.ARRAY_BYTE_PRIMITIVE;
}
}
return retVal;
}
void setComponentType(Class type) {
this.componentType = type;
}
protected void addTrackedField(FieldDesc f) {
if (trackedFields == null)
trackedFields = new ArrayList();
if (logger.isLoggable(Logger.FINEST)) {
Object[] items = new Object[] {f.getName(),getName()};
logger.finest("sqlstore.model.fielddesc.addingfield",items); // NOI18N
}
trackedFields.add(f);
}
abstract void computeTrackedRelationshipFields();
/**
* This method compares the column lists between to fields to see if they match.
* If f1 and f2 are both primitive fields, we do an exact match.
* If f1 is primitve and f2 is a relationship field, we do an at-least-one match.
* If both f1 and f2 are relationship fields, we do an exact match.
* @return <code>true</code> if there is a match, <code>false</code>, otherwise.
*/
static boolean compareColumns(FieldDesc f1, FieldDesc f2) {
ArrayList columnList1 = null;
ArrayList columnList2 = null;
ArrayList columnList3 = null;
ArrayList columnList4 = null;
boolean exactMatch = false;
// For LocalFieldDesc, we use columnDescs for comparison.
// Otherwise, we use localColumns for comparison.
if (f1 instanceof LocalFieldDesc) {
columnList1 = ((LocalFieldDesc) f1).columnDescs;
if (f2 instanceof LocalFieldDesc) {
columnList2 = ((LocalFieldDesc) f2).columnDescs;
// Not sure yet whether we need to a exact match
// here yet.
exactMatch = true;
} else {
// We are comparing LocalFieldDesc and ForeignFieldDesc.
// We do not need an exact match. The relationship must change,
// if one of the LocalFieldDesc's columns is changed.
columnList2 = ((ForeignFieldDesc) f2).localColumns;
}
} else {
if (f2 instanceof LocalFieldDesc) {
return false;
} else {
ForeignFieldDesc ff1 = (ForeignFieldDesc) f1;
ForeignFieldDesc ff2 = (ForeignFieldDesc) f2;
if (ff1.useJoinTable() && ff2.useJoinTable()) {
columnList1 = ff1.assocLocalColumns;
columnList2 = ff2.assocLocalColumns;
columnList3 = ff1.assocForeignColumns;
columnList4 = ff2.assocForeignColumns;
} else if (!ff1.useJoinTable() && !ff2.useJoinTable()) {
columnList1 = ff1.localColumns;
columnList2 = ff2.localColumns;
columnList3 = ff1.foreignColumns;
columnList4 = ff2.foreignColumns;
} else {
return false;
}
exactMatch = true;
}
}
boolean found = false;
for (int k = 0; k < 2; k++) {
if (k == 1) {
if (columnList3 != null) {
columnList1 = columnList3;
columnList2 = columnList4;
} else {
break;
}
}
int size1 = columnList1.size();
int size2 = columnList2.size();
if (exactMatch && (size1 != size2)) {
return false;
}
for (int i = 0; i < size1; i++) {
found = false;
ColumnElement c1 = (ColumnElement) columnList1.get(i);
// Find if any column of columnList2 matches with c1.
for (int j = 0; j < size2; j++) {
ColumnElement c2 = (ColumnElement) columnList2.get(j);
if (c1.getName().getFullName().equals(c2.getName().getFullName())) {
found = true;
}
}
// If we are doing an exact match, and no match is found,
// we return false.
if (exactMatch && !found) {
return false;
}
// If we are not doing an exact match and a match is found,
// we return true;
if (!exactMatch && found) {
return true;
}
}
}
// If found is true, that means we got here because the two column lists match
// exactly. Otherwise, the two column lists don't match at all.
return found;
}
}
|
