Changed package naming across all examples.

service-layer/src/main/java/com/iluwatar/servicelayer/spellbook/Spellbook.java

@@ -0,0 +1,92 @@
+package com.iluwatar.servicelayer.spellbook;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.ManyToMany;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+import com.iluwatar.servicelayer.common.BaseEntity;
+import com.iluwatar.servicelayer.servicelayer.spell.Spell;
+import com.iluwatar.servicelayer.wizard.Wizard;
+
+/**
+ * 
+ * Spellbook entity.
+ *
+ */
+@Entity
+@Table(name="SPELLBOOK")
+public class Spellbook extends BaseEntity {
+	
+	public Spellbook() {
+		spells = new HashSet<Spell>();
+		wizards = new HashSet<Wizard>();
+	}
+	
+	public Spellbook(String name) {
+		this();
+		this.name = name;
+	}
+
+	@Id
+	@GeneratedValue
+	@Column(name = "SPELLBOOK_ID")
+	private Long id;
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+	
+	private String name;
+
+	@ManyToMany(mappedBy = "spellbooks")
+	private Set<Wizard> wizards;
+
+	@OneToMany(mappedBy = "spellbook", orphanRemoval = true, cascade = CascadeType.ALL)
+	private Set<Spell> spells;
+	
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Set<Wizard> getWizards() {
+		return wizards;
+	}
+
+	public void setWizards(Set<Wizard> wizards) {
+		this.wizards = wizards;
+	}
+
+	public Set<Spell> getSpells() {
+		return spells;
+	}
+
+	public void setSpells(Set<Spell> spells) {
+		this.spells = spells;
+	}
+
+	public void addSpell(Spell spell) {
+		spell.setSpellbook(this);
+		spells.add(spell);
+	}
+	
+	@Override
+	public String toString() {
+		return name;
+	}	
+}